Dictionary of English Idioms & Idiomatic Expressions

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Babe in arms
Babe in the woods
Baby boomer
Back burner
Back foot
Back number
Back the wrong horse
Back to back
Back to square one
Back to the drawing board
Back to the salt mine
Back to the wall
Backseat driver
Bad Apple
Bad blood
Bad egg
Bad hair day
Bad mouth
Bad shape
Bad taste in your mouth
Bad workers always blame their tools
Bag of bones
Bag of nerves
Baker's dozen
Bald as a coot
Ball is in your court
Ballpark figure
Banana republic
Banana skin
Bandit territory
Baptism of fire
Bar fly
Bare your heart
Barefaced liar
Bark is worse than their bite
Barking up the wrong tree
Barkus is willing
Barrack-room lawyer
Barrel of laughs
Basket case
Bat an eyelid
Bated breath
Batten down the hatches
Battle of nerves
Be all ears
Be careful what you wish for
Be on the pig's back
Be out in left field
Be that as it may
Be true blue
Be up the spout
Bean counter
Bear fruit
Bear market
Bear the brunt
Beard the lion in his own den
Beat about the bush
Beat someone to the draw
Beat swords into ploughshares
Beat the daylights out of someone
Beat to the punch
Beat your brains out
Beating a dead horse
Beauty is in the eye of the beholder
Beauty is only skin deep
Beck and call
Bedroom eyes
Bee in your bonnet
Bee's Knees
Beeline for
Been in the wars
Been there, done that
Beer and skittles
Before the ink is dry
Before you can say Jack Robinson
Beg the question
Beggars can't be choosers
Behind bars
Behind closed doors
Behind someone's back
Behind the eight ball
Behind the times
Believe in the hereafter
Bells and whistles
Bells on
Belly up
Below par
Below the belt
Belt and braces
Belt and suspenders
Bend over backwards
Bend someone's ear
Benjamin of the family
Beside the point
Beside themselves
Beside yourself
Best of a bad bunch
Best of both worlds
Best thing since sliced bread
Bet your bottom dollar
Better half
Better late than never
Better safe than sorry
Better than a stick in the eye
Better the devil you know
Between a rock and a hard place
Between the devil and the deep blue sea
Between the lines
Between you and me and the cat's whiskers
Beyond a shadow of a doubt
Beyond belief
Beyond our ken
Beyond the pale
Big Apple
Big bucks
Big cheese
Big Easy
Big fish
Big fish in a small pond
Big girl's blouse
Big hitter
Big nose
Big picture
Big time
Bigger fish to fry
Bird in the hand is worth two in the bush
Bird's eye view
Bird-brain
Birds and the bees
Birds of a feather flock together
Birthday suit
Bit between your teeth
Bit part
Bit player
Bite off more than you can chew
Bite someone's head off
Bite the bullet
Bite the dust
Bite your lip
Bite your tongue
Bits and bobs
Bitter end
Bitter pill to swallow
Black and white
Black as Newgate's knocker
Black hole
Black sheep
Blackball
Blank cheque
Bleeding edge
Bleeding heart
Bless your pointy little head
Blessing in disguise
Blind as a bat
Blind leading the blind
Blink of an eye
Blood and thunder
Blood from a turnip
Blood is thicker than water
Blood is worth bottling
Blood out of a stone
Blood, sweat and tears
Blow a gasket
Blow by blow
Blow hot and cold
Blow me down
Blow off steam
Blow out of the water
Blow smoke
Blow the cobwebs away
Blow the whistle
Blow your mind
Blow your own horn
Blow your own trumpet
Blow your stack
Blow your top
Blue blood
Blue-eyed boy
Bob's your uncle
Body politic
Bold as brass
Bolt from the blue
Bone of contention
Bone to pick
Boot is on the other foot
Born to the purple
Born with a silver spoon in your mouth
Both ends meet
Bottom line
Bounce ideas
Bounce off the walls
Bouquet of orchids
Box and dice
Box clever
Boxing and coxing
Boys in blue
Brain surgery
Brass monkey
Brass neck
Brass tacks
Bread and butter
Breadwinner
Break a leg
Break even
Break ground
Break the back of the beast
Break the ice
Break your duck
Break your heart
Breathe down your neck
Breathe life into
Breathe your last
Bridge the gap
Bright and breezy
Bright as a button
Bright-eyed and bushy-tailed
Brighten up the day
Bring a knife to a gunfight
Bring home the bacon
Bring on board
Bring someone to book
Bring someone to heel
Bring the house down
Bring to the table
Broad church
Broad strokes
Broke as a joke and it ain't funny
Brown nose
Brownie points
Brush under the carpet
Buggles' turn
Bull in a China shop
Bull market
Bull session
Bull-headed
Bums on seats
Bun in the oven
Bundle of nerves
Bur under my saddle
Burn rubber
Burn the candle at both ends
Burn the midnight oil
Burn your bridges
Burn your fingers
Burning question
Burst at the seams
Bury the hatchet
Bury your head in the sand
Busman's holiday
Bust my chops
Busted flush
Busy as a beaver
Busy as a bee
Butt naked
Butt of a joke
Butter wouldn't melt in their mouth
Butterfingers
Butterflies in your stomach
Button your lip
Buy the farm
By a hair's breadth
By a long chalk
By a whisker
By and large
By cracky
By dint of
By heart
By hook or by crook
By leaps and bounds
By the back door
By the book
By the by
By the numbers
By the same token
By the seat of your pants
By the skin of your teeth
By word of mouth