Green’s Dictionary of Slang

(US gay) sexually attractive, spec. to be subjected to oral sex; play on SE edible, fit to eat.

c.1972		‘A. Todd’ Hunky Brothers 165: His boyish basket was uncovered, and it looked achingly edible [Simes:DLSS].
1983		B. McDonald Cum 111: Dressed in wrinkled shirts and sometimes ill-fitting pants, the men wouldn’t have won any fashion awards but I placed almost all of them in the edible category [Simes:DLSS].
1995		D. Vilmure Toby’s Lie 31: Courtney A. Ciccone was an edible cheerleader with tits like tidal waves and blinding fake smile [Simes:DLSS].
1998		K. Smith Virgin Sailors 78: [H]e had a lot to offer a cock-hungry lad like myself. He looked edible and adorable! [Simes:DLSS].
2001		R. Dessaix Corfu 142: I met this delicious man—literally edible, let me tell you .