what's up
- 1A friendly, casual way to say hello.
What's up, guys? Ready to play?
He walked in, said "What's up?" to everyone, and sat down.
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- 2Used to ask someone what is happening or what they are doing.
What's up this weekend? Do you have any plans?
Hey, what's up? Are you busy, or do you want to get lunch?
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- 3Used to ask what is wrong or what the problem is.
What's up? Why are you crying?
The car won't start. What's up with it?
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Practice
Can you tell the meanings of what's up apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.
Origin
Made popular by the cartoon rabbit Bugs Bunny, who asked “What's up, doc?”