[shibumi]

"This guy needs a smack upside the head, and told to ferme ta goule! (shut your mouth!)."

I believe it's "Fermez votre bouche." (formal) or "Fermez la bouche" (vernacular.) I will admit that I don't speak the "Quebecois" dialect. Is "ta goule" some sort of Quebec idiom?

[Bulwyf]

ferme ta bouche is a politer way to say shutup, ferme ta gueule is considered very rude heh. I misspelled it the first time around.