to eat out a girl, oral sex with a female recipient, cunnilingus. From a certain man who shall remain nameless (GAP) who was a devourer of all things fishy, and who invented the philosophy "it is better to give than recieve". Derived from the same era as coops
1. Alf: "I just got the best gaps last night, mmmmm"
2. Did you hear theeban gave gaps to a rednut?