Idioms Beginning With 'B'

B

    babe in arms
    babe in the woods
    babe magnet
    baby blues
    baby elephant in the room
    baby up
    baby-killer
    babysitter test
    back and forth
    back at you
    back burner
    back down
    back forty
    back gammon player
    back in
    back in the day
    back into
    back of one's hand
    back off
    back office
    back out
    back to square one
    back to the drawing board
    back to the wall
    back up
    back wall
    back-asswards
    back-burner
    back-cloth star
    back-of-the-envelope
    back-to-back
    back-to-back-to-back
    backhanded compliment
    backpedal
    backseat driver
    backwater
    bacon-faced
    bacon-fed
    bad actor
    bad apple
    bad blood
    bad boy
    bad company
    bad egg
    bad form
    bad hair day
    bad iron
    bad joke
    bad name
    bad news
    bad old days
    bad penny
    bad taste in one's mouth
    bad to the bone
    bad word
    badge bunny
    bag and baggage
    bag of bones
    bag of rations
    bag of shells
    bag of tricks
    bag of wind
    bail out
    bake up
    baker's dozen
    baker's half dozen
    balance out
    balance the books
    balancing act
    bale up
    ball hog
    ball of fire
    ball-breaker
    balloon goes up
    balloon knot
    ballpark estimate
    ballpark figure
    balls to the wall
    balls-out
    balls-up
    balum rancum
    banana oil
    banana republic
    Banbury story of a cock and a bull
    band together
    bang away
    bang for the buck
    bang on
    bang out
    bang straw
    bang to rights
    bang up
    bang-up cove
    banged up
    bank night
    bank up
    bankbook
    banker's dozen
    bankers' hours
    banyan day
    baptism by fire
    bar none
    bar off
    bar sinister
    bar star
    bar up
    bare metal
    bare one's soul
    bargain basement
    barge in
    bark up the wrong tree
    Barmacide feast
    barn doors
    barn find
    barnburner
    barrel of laughs
    barrel of monkeys
    barrow man
    base over apex
    basement battler
    bash the bishop
    basket case
    basket house
    bass-ackwards
    bastardly gullion
    bat a thousand
    bat an eyelash
    bat an eyelid
    bat five hundred
    bat for both sides
    bat for the other team
    bat one's eyelashes
    bat one's eyes
    bat the breeze
    bathtub gin
    batten down the hatches
    bawl out
    be a hundred years too early
    be a man
    be absorbed by
    be all ears
    be around
    be born yesterday
    be glad to see the back of
    be in a spot of bother
    be in and out
    be in for
    be in luck
    be in one's altitudes
    be it as it may
    be left holding the baby
    be mother
    be my guest
    be on about
    be on to
    be oneself
    be prepared
    be sick
    be silent
    be still my heart
    be taken ill
    be that as it may
    be-all and end-all
    bean counter
    bean queen
    bear a hand
    bear bait
    bear down
    bear fruit
    bear in mind
    bear oneself
    bear the brunt
    bear up
    bear with
    beard the lion in his den
    beast with two backs
    beat a dead horse
    beat a retreat
    beat around the bush
    beat Banaghan
    beat feet
    beat it
    beat off
    beat one's brain
    beat one's head against a stone wall
    beat someone's brains out
    beat the bishop
    beat the clock
    beat the daylights out of
    beat the meat
    beat the pants off
    beat the shit out of
    beat the stuffing out of
    beat to the punch
    beats me
    beautiful people
    beauty mark
    beauty queen
    beauty sleep
    beaver away
    beck and call
    become of
    become one flesh
    bed blocker
    bed in
    bed of roses
    beddy-bye
    bee in one's bonnet
    beef to the hoof
    beef up
    beefcake
    beefed out
    been there, done that
    been there, done that, bought the T-shirt
    been there, done that, got the T-shirt
    been to the rodeo
    beer and skittles
    beer goggles
    beer muscles
    before someone's time
    before you can say Jack Robinson
    beg off
    beg to differ
    behind bars
    behind closed doors
    behind its time
    behind someone's back
    behind the bit
    behind the counter
    behind the eight-ball
    behind the scenes
    behind the times
    behind the wheel
    behind time
    being that
    belemnite battlefield
    Belgravian
    believe it or not
    believe one's ears
    believe one's eyes
    believe you me
    bell out
    bell the cat
    bells and whistles
    belly up
    belly up to the bar
    below par
    below the belt
    below the salt
    belt out
    bench jockey
    bend one's elbow
    bend over backwards
    bend someone's ear
    bend the knee
    bend the truth
    beneath the surface
    benevolent overlord
    bent on
    bent on a splice
    beside oneself
    beside the point
    best bet
    best bib and tucker
    best laid plans
    best of both worlds
    best of the bunch
    best regards
    best thing since sliced bread
    best thing since sliced pan
    best-kept secret
    bet one's boots
    bet one's bottom dollar
    bet the farm
    better and better
    better angels
    better half
    better than sex
    between a rock and a hard place
    between Scylla and Charybdis
    between the hammer and the anvil
    between the jigs and the reels
    between the pipes
    between you, me, and the bedpost
    betwixt and between
    beyond one's pay grade
    beyond the black stump
    beyond the call of duty
    beyond the pale
    BFD
    Bharat Army
    bide one's time
    big boy
    big boys
    big break
    big bucks
    big cheese
    big deal
    big enchilada
    big fat
    big fish in a small pond
    big girl
    big girl's blouse
    big gun
    big guy
    big house
    big kahuna
    big mouth
    big name
    big ol'
    big old
    big ole
    big picture
    big shop
    big shot
    big sleep
    big spender
    big talk
    big tent
    big up
    big wheel
    big year
    big-boned
    bigger fish to fry
    bill of goods
    binary decimal
    bio queen
    bird in the bosom
    bird of one's own brain
    birds and bees
    birds of a feather
    bird's-eye view
    birth tourism
    birthday suit
    bit between one's teeth
    bit by a barn mouse
    bitch goddess
    bitch up
    bite me
    bite of the cherry
    bite of the reality sandwich
    bite off
    bite off more than one can chew
    bite one's lip
    bite one's tongue
    bite someone in the arse
    bite someone's head off
    bite the big one
    bite the biscuit
    bite the bullet
    bite the dust
    bite the hand that feeds one
    bite to eat
    bits and bobs
    bitter end
    bitter pill to swallow
    black and blue
    black babies
    black beetle
    black cat
    black gold
    black gum
    black magic
    black man
    black mark
    black mud
    black out
    black rider
    Black Russian
    black sheep
    black tie
    black triangle
    black-on-black
    blame Canada
    blame game
    blank
    blank canvas
    blank out
    blank slate
    blanket term
    blare out
    blast off
    blaze a trail
    blaze away
    blazing star
    bleed the lizard
    bleed to death
    bleeding edge
    bless you
    blessed event
    blessing in disguise
    blimp out
    blind alley
    blind date
    blind leading the blind
    blind with science
    blink of an eye
    blink-and-you-miss-it
    block out
    blocking and tackling
    blood and guts
    blood in the water
    blood moon
    bloom is off the rose
    blossom out
    blot one's copy book
    blot out
    blow a gasket
    blow a kiss
    blow away
    blow chunks
    blow hot and cold
    blow it
    blow me
    blow me down
    blow off
    blow off steam
    blow one's load
    blow one's wad
    blow out of proportion
    blow over
    blow smoke
    blow someone out of the water
    blow someone's cover
    blow someone's mind
    blow the lid off
    blow the whistle
    blow this pop stand
    blow this popsicle stand
    blow to kingdom come
    blow up in one's face
    blow up someone's phone
    blow-by-blow
    blue book
    blue chamber
    blue devils
    blue moon
    blue movie
    blue note
    blue state
    blue wall of silence
    blue-eyed
    blue-eyed boy
    blue-sky thinking
    blurt out
    board out
    Bob's your uncle
    body blow
    body check
    body English
    body of water
    bog off
    bogged down
    boil down
    boil over
    boil up
    boiling frog
    boiling hot
    boiling mad
    boiling point
    boldly go where no man has gone before
    bolt bucket
    bomb out
    bone dry
    bone in her teeth
    bone in the throat
    bone of contention
    bone up
    bone-crunching
    bone-deep
    bone-dry
    bone-idle
    bone-shaking
    booby prize
    boogie on down
    book dumping
    book in
    boomshanka
    boot camp
    boot out
    boots and all
    boots on the ground
    booze can
    bored out of one's brains
    bored out of one's mind
    borganism
    born and bred
    born in a barn
    born on the Fourth of July
    born with a silver spoon in one's mouth
    borrowed time
    bottle away
    bottle up
    bottom bitch
    bottom drawer
    bottom edge
    bottom falls out
    bottom feeder
    bottom fishing
    bottom hand
    bottom line
    bottom of the line
    bottom of the ninth
    bottom out
    bottom the house
    bought and paid for
    bounce back
    bounce off
    bounce off the walls
    bow and scrape
    bow down
    bow out
    bowl a googly
    bowl of cherries
    bowl over
    box clever
    box oneself into a corner
    box seat
    box someone's ears
    box the compass
    box-office bomb
    boy howdy
    boy in the boat
    boy toy
    boys and girls
    boys and their toys
    brace of shakes
    bragging rights
    brain bucket
    brain candy
    brain damage
    brain surgeon
    brain surgery
    branch off
    branch out
    brass ceiling
    brass farthing
    brass monkey
    brass monkeys
    brass neck
    brass ring
    brass-neck
    brass-necked
    brassed off
    brave out
    brazen out
    breach of promise
    bread and butter
    bread-and-butter
    break a law
    break a leg
    break a sweat
    break cover
    break even
    break ground
    break in
    break into
    break new ground
    break one's back
    break one's duck
    break one's lance
    break out
    break ranks
    break someone's heart
    break the back of
    break the bank
    break the buck
    break the deadlock
    break the fourth wall
    break the ice
    break the mold
    break the Sabbath
    break the seal
    break through
    break up
    break wind
    break with
    breaking and entering
    breath of fresh air
    breath-catching
    breathe a sigh of relief
    breathe a word
    breathe down someone's neck
    breathe easy
    bred-in-the-bone
    breed in the bone
    brick and mortar
    brick by brick
    brick house
    brick in
    brick in one's hat
    brick wall
    bricks and mortar
    bridge the gap
    bright and early
    bright lights
    bright line
    bright shiny object
    bright young thing
    bright-eyed and bushy-tailed
    bright-line rule
    bring a knife to a gunfight
    bring about
    bring down the hammer
    bring down the house
    bring forward
    bring home
    bring home the bacon
    bring it weak
    bring on
    bring one's arse to an anchor
    bring out in a rash
    bring over
    bring owls to Athens
    bring round
    bring sand to the beach
    bring to a boil
    bring to bear
    bring to heel
    bring to justice
    bring to light
    bring to the table
    bring up
    bring up the rear
    broad church
    broad in the beam
    broad shoulders
    broad strokes
    broaden someone's horizons
    Broadway
    broken record
    broken vessel
    broken-hearted
    Bronx cheer
    broom closet
    brown bag
    brown bread
    brown noser
    brown power
    brown study
    brown thumb
    browned off
    brownie point
    brownnose
    brush aside
    brush by
    brush down
    brush off
    brush up
    bubble over
    buck fever
    buck for
    buck naked
    buck the trend
    buck up
    bucket down
    bucket list
    bucket of bolts
    buckle down
    buckle up
    Buckley's and none
    Buckley's chance
    buff out
    buff up
    bug off
    bug out
    bug storm
    bugger all
    bugger off
    Buggins's turn
    build a better mousetrap
    build bridges
    build castles in the air
    build on sand
    build up
    built like a brick shithouse
    built like a tank
    bulger
    bulk bill
    bulk billing
    bull session
    bulletproof
    bum chum
    bum rap
    bum rush
    bum steer
    Bumfuck
    Bumfuck, Egypt
    bump and grind
    bump in the road
    bump into
    bump off
    bump up
    bum's rush
    bun fight
    bundle of energy
    bundle of joy
    bundle of laughs
    bundle of nerves
    bundle off
    bunny girl
    bunny hop
    bunny hug
    buoy up
    buried treasure
    burn a hole in one's pocket
    burn one's bridges
    burn one's candle at both ends
    burn one's fingers
    burn out
    burn rubber
    burn the candle at both ends
    burn the midnight oil
    burn to a crisp
    burst in
    burst into tears
    burst out laughing
    burst someone's bubble
    bury one's head in the sand
    bury the hatchet
    bury the lead
    bury the lede
    bush league
    bush telegraph
    business as usual
    business end
    business girl
    busman's holiday
    bust a cap
    bust a move
    bust a nut
    bust chops
    bust one's balls
    bust one's chops
    bust the dust
    busted flush
    busy little beaver
    busy work
    but good
    but seriously folks
    but then
    butt heads
    butt in
    butt out
    butt-naked
    butt-ugly
    butter face
    butter fingers
    butter one's bread on both sides
    butter wouldn't melt in someone's mouth
    butterfly upon a wheel
    button nose
    button one's lip
    button-down
    buttoned-down
    buy and pay for
    buy into
    buy out
    buy straw hats in winter
    buy the farm
    buy time
    buy to let
    buy up
    buzz off
    by a hair's breadth
    by a long shot
    by all accounts
    by all means
    by and large
    by any chance
    by any means
    by any stretch of the imagination
    by far
    by guess or by gosh
    by halves
    by hand
    by heart
    by hook or by crook
    by mistake
    by no means
    by no stretch of the imagination
    by one's lights
    by one's own hand
    by oneself
    by rights
    by the book
    by the by
    by the Grace of God
    by the numbers
    by the same token
    by the skin of one's teeth
    by the time
    by the way
    by trade
    by virtue of
    by-the-book
    by-the-numbers
(source: wiktionary)
➤ Read more idioms and phrases, English grammar and vocabulary at Basic English Grammar And Vocabulary . 

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