Is there a native French speaker from 🇫🇷France who can tell me how to say “Fuck Off!” in French?

“Fuck Off” as in “PISS OFF!” to say to an UNATTRACTIVE jerky guy who is bothering a woman!

I already asked a girl friend whose Mom is a French Teacher last year, but she wouldn’t tell me! 😡

VERY USEFUL thing for a girl to know!

Thanks! Merci beaucoup!