Boi

"boi" is a slang term for either heroin or fentynal. Instead of asking if someone has heroin or fetty you would ask if they had "boi"

Do you got a 20 of some boi?

Geek

A "geek" in street terms or around drug dealers and users means that the person who is a "geek" is a very bad drug addict. Someone who will do anything for drugs. Not unlike a "crackhead", "cluck", or "dope fein"

Look at that geek over there selling his t.v for a 20 of crack.