Meaning of “what's up?” in the English Dictionary

british dictionary

"what's up?" in British English

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what's up?

informal

used to ask someone what the problem is:

What's up - why does everyone look so serious?
What's up with Terry?

(Definition of “what's up?” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"what’s up" in American English

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what’s up

infml used for asking how someone is or what someone has been doing:

"Hi, Chuck, what’s up?" "Nothing much."

(Definition of “what’s up” from the Cambridge Academic Content Dictionary © Cambridge University Press)

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