What's up

phrase, slang

Definitions

Phrase
  1. 1
    What’s the matter? What is the problem? What is wrong? colloquial, idiomatic, with-up

    "You're looking a bit miserable. What's up?"

  2. 2
    What's happening? What are you doing? US, colloquial, idiomatic, with-up

    "Hey, what's up? – Not much, just working."

  3. 3
    A casual greeting with a meaning similar to hi or nice to meet you. colloquial, rhetoric

    "Hey, what's up? – Hey! Good to see you."

Etymology

Popularized by the cartoon character Bugs Bunny as part of his catchphrase “Eh... What’s up, doc?”, as early as 1940. Originally a common greeting from Bugs Bunny creator Tex Avery's neighborhood in Taylor, Texas.

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