ta gueule - never come across it. yay!
Question: What's a good little list of phrases that mean "shut up!" ? There's got to be more than these:
tais-toi!
la ferme!
ta gueule!
what others? They're good for dialogues and stuff involving some form of matriarch or brother/sister.
Ptet - peut-être
Though I don't know how far we can go with the shortening of stuff... I'll ask le prof.