Waaahhhh 

A popular New Orleans term used as a greeting, similar to saying hello or whats up.

Waaahhhh! Wassam bruddah, how you been?

Waaahhhh by Geezybeau June 4, 2023

Waaahhh 

A derogative term used to "mug" someone off.

Ryan: fancy going to the pub tonight?

Jess: I can't im staying at college...

Josh: Let down..

Ryan: WAAAHHHHHH!!!!

Waaahhh by FreeTheManWhoWantsToParty January 21, 2011