1. Substitute phrase for "my nigga" to avoid use of the word "nigga" since most ppl are offended whether they are black or not but if they arent black they are mad because they cant say "nigga".
2. my friend, homie
To show complete and utter disapproval for something suggested or offered. Emphasis is shown on describing the ass intended for receiving the kiss. Usually used by people of color or "black men".