Ouioui Edit Meaning

1.

How the French would spell: 1) one of our colloquial words for piss or 2) the act of pissing.

(In mock French accent): Monsieurs et mesdames, I have to go to ze chambre to ouioui!

See french, pee, piss, see a man about a horse

2.

a nick name for a small or wee person

"hey have you seen ouioui?"

"who's that?"

"you know, ouioui, her head comes up about to my elbow"

See wee, small, shifty, tiny