Black Friday
bloomberg news
baby blues
back against the wall
back door
back forty
back of beyond
back to basics
back to square one
back to the drawing board
back to the wall
backhanded compliment
backroom boy(s)
backseat driver
bad blood between
bad egg
bad-mouth
bag and baggage
baker’s dozen
balancing act
ballpark figure
banana republic
bang for the buck
bang head against wall
bang on
bang something out
banker’s hours
bark up the wrong tree
barking up the wrong tree
basket case
bat an eye or eyelash or eyelid
bated breath
batten down the hatches
baying for blood
be a dime a dozen
be in bed with
be in hot water
be in the same boat
be in uncharted waters
be on a collision course
be up on
be written in the stars
bear the brunt of
beat a hasty retreat
beat around the bush
BROWSE IDIOMS THAT START WITH LETTER "b"
A list of idioms in alphabetical order with definitions and examples