A way of showing that you agree with a particular statement that was said.
Homeboy#1: I cant stand them punk ass police, they always messin with us.
Homeboy#2: Aint It Mane.
A homeboy, or homegirl that is close to you. A way of greeting a fellow minority in the struggle.
Homeboy#1: Wassup my mellow?
Homeboy#2: Aint nuttin my boy.