The sound a trombone with a mute makes. The trombone often being played by a man with sunglasses and a berret. Two consecutive notes in a row, the first being higher than the second. Only used when someone does something dumb.
"Hahaha, that fucker backed into the car! Waa-waa!" or "You blew bong juice all over your pants! Waa-waa!"
1. Used by the maker of a joker after he tells the joke and receives no laughs.
2. Sign of failure in telling a joke.
3. Often used after bow chicabow now.
man: "Hey, this guy was like 'Let me drive your car' and this girl was like 'Okay, it's a stick.'" Bow chica bow now! (No response) Waa-waa!"
A term used to describe emergency contraception when on vacation, and an english speaking pharmacy cannot be found.
Person A: Bonjour/buenas dias, do you possibly sell the Morning After Pill?
Pharmacist: ?
Person A: Waa-Waa NO? (accompanied by baby-rocking arms movements and frantic shaking of head)