Definition from Wiktionary, the free dictionary
- (idiomatic) To interfere with.
- Don't mess with the controls. I just got everything adjusted correctly.
- (idiomatic) To diss; to put down.
- Hey! Quit messing with my brother.
- (idiomatic) To joke around with or dupe someone, in either a friendly or unfriendly manner.
- Don't worry, I'm just messing with you.