Ouaille 

French. Slang for yes, affirmation.

À-tu vus la game des Canadiens hièr soir?

Ouaille tête Ouaille, pas mal bonne game là.

Ouaille by Acadieman October 26, 2006

Ouailli Moment 

An urban expression which describes a very embarrassing and humiliating event. In these situations one must exclaim “Ouailli moment!” Followed by embarrassment and shame.

Younes : Ayo this girl rejected me.
You : YOO THAT IS SOOO A OUAILLI MOMENT

Ouailli Moment by SlaRem1711 August 17, 2021