, less formally whassup wit, wazzup wit etc.
- (colloquial, rhetorical question) Used to express disbelief or curiosity.
- They raised my electricity rates again. What’s up with that?
- What’s up with all this new music they’re playing?
- (colloquial, rhetorical question, salutation) Said to express that a person's behavior is out of the ordinary.
- What’s up with you?