Learner's definition of CAT
1 a : a small animal that is related to lions and tigers and that is often kept by people as a pet — often used before another noun b : a lion, tiger, leopard, or similar wild animal 2 old-fashioned slang : a man
He's a cool cat.
You cats are crazy!
Cat got your tongue?informal
— used to ask someone why he or she is not saying anything
let the cat out of the bag
like something the cat brought/dragged/drug in
◊ If you look or feel like something the cat brought/dragged/drug in, you are very dirty or untidy.
like the cat that ate/got/swallowed the canary(US)or Britishlike the cat that got the cream
— used to say that someone looks very proud or satisfied about something he or she has done
Look what the cat dragged in!informal
— used to call attention to someone who has entered the room or area
the cat's meow(US)old-fashioned + informalorthe cat's pajamasor Britishthe cat's whiskers
— used to say that someone or something is very appealing