What is Gai Tren Zich?
1) Means "Go Fuck Yourself".
Commonly used yiddishterm.
2)It can also be taken literally.
It then means "go jerk off".
Mark: Hey babe, have fun last night?
Rachel: HAHA mark,you can Gai tren zich now.
Mark: Guess not.
See go fuck yourself, fuck off, fuck you
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