ENGLISH
REFERENCE

what's up

idiom
Meaning

What’s the matter? What is the problem? What is wrong?


Origin

first recorded 20th c.

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.

Examples
SIMPLE

Hey, what's up? You look upset.

CONTEXTUAL

When she slammed the door, her roommate asked, "What's up? Did something happen at work?"

COMPLEX

Noticing the tension in the room, the mediator quietly approached the group and asked, "What's up?" hoping to uncover the source of the conflict before it escalated further.

Anchors to
Related idioms8entries
  1. 01

    get what's coming to one

    To experience the consequences of one's actions.

  2. 02

    what's cooking

    A greeting, similar to how are you?; what's happening?; what's up?; what's new?

  3. 03

    what's eating

    What is wrong with...? What is the problem with... (somebody)? Inquired regarding somebody who seems upset, worried, angry, etc.

  4. 04

    what's eating you

    What is annoying or bothering you?

  5. 05

    what's going on

    An informal greeting.

  6. 06

    what's in it for me

    What are the advantages of (something) to me, personally?

  7. 07

    what's new

    The latest developments in a particular situation or a person's life.

  8. 08

    what's the beef

    Why are you complaining? What are you complaining about?

Last updated July 12, 2026