To be aggressive toward someone, usually with jealous and/or malicious undertones.
"Don't try to come for me, heifer! You know you just jealous."
"I make six figures, and you're nothing but a housewife. Come for me!!"
"They tried to come for me with some stuff from my past. I wasn't having it."
One's main girl. As opposed to a "side piece".
"Bro, is that your side piece?"
"Son, I don't even got a front piece yet."