What is your native language ?

I can't believe you guys have no idea what this means especially my neighbor in the NE US. Plain and simple it means "fuck you" or more literally "get fucked" or more politely "get sodomized". When you, a man, get doinked, the doinker bends you over. And yes, like so many other insults and challenges, it is male-oriented and homo-phobic. When a woman says to a man "F you" she isn't wishing him a roll in the hay with her or any other woman.