British & Australian, informal

to be a very unpleasant person.

He's a nasty piece of work, is Carl. I'd avoid him if I were you.

• a bite to eat
• a bit much
• a bit of all right
• a bit of fluff
• a bit of how's your father
• a bit of rough
• a bit of skirt
• a bit on the side
• a bitter pill
• a bitter pill to swallow
• a bit too much
• a black day
• a black mark
• a blank cheque
• a blast from the past
• a bleeding heart
• a blessing in disguise
• a blind alley
• a blind date
• a blind spot
• a blood brother
• a blot on the landscape
• a blow job
• a blue-eyed boy
• a bodice-ripper