street brother 

This is your best friend when doing hard time. When you get out you guys are street brothers.

Yo my boy Icy is my street brother. We got each other's back no matter what

street brother by Dirtmcgurt001 November 26, 2019

Street Brother 

What a female calls her male friend "someone she's not blood related to" whom she knows from the street and having consensual sex with but not in a relationship with and is sneaky about the relationship.

I'm going to go visit my street brother. My street brother is coming over to help me do things.

Street Brother by Thatsmyshit April 17, 2025