Gay. If someone (of the opposite sex) is playing for the same team as you, it means they are also after the the same sex (love interest-wise) as you.
Tyrone: Ayo, man. I like Gina, you think you could hook a nigga up?
Jamal: Nah, nigga, she’s playing for the same team as us.
Tyrone: Damn, she’s gay?!
Jamal: Yeah, nigga. She after them girls too.
This was a north east response to the question- how's your belly for spots? It meant I am ok.
Exchange between friends-- how's your belly for spots?
Response -- same as me arse for blisters.
These were greetings and response indicating all is ok.