Blowfavor
The act of repaying a favor with a blowjob or any other form of oral sex(cunnilingus or fellatio).
John: Becky, you still owe me 20 bucks.
Becky: I don’t have it.
John: Well... you have a mouth.
Becky: A blowfavor it is
Becky: I don’t have it.
John: Well... you have a mouth.
Becky: A blowfavor it is