An insult*, usually used as a comeback when someone insults your credibility, swag, and sexual orientation. This means many things:
1. By asking him, "Who's yo mans?" you are implying that he is gay and has a pimp.
2. You are calling him a bitch.
3. You are saying that he can't do shit without asking his pimp, and that he's the bottom bitch in his homosexual relationship
.
Using the word "nigga'' at the end will undoubtedly increase the ghetto-ness of the phrase but also imply you are not fucking around. A simple example of this is provided below.
*Can also be used jokingly around good friends.
Tyrone: Ay Dwayne, I heard your Yeezys ain't real.
Dwayne: The fuck did you say? Who's Yo Mans? Huh? Who's Yo Mans, nigga?
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).