For a guy: a cool friend who's also a knock, or a pussy
For a girl: The bitch that's tight with you but refuses to give you a blowjob.
Commonly referred to as squeegee, squeegee ass, or squeegee ass bitch
For a guy: Person 1: "Man, that guy is tight, but he kinda a pussy."
Person 2: "Yea, doe, he a lightweight squeegee."
For a girl: Person 1: "Damn, bruh, my bitch won't blow me."
Person 2: "Bruh, I toldja you she was a squeegee ass bitch