male inserts a cucumber (cuke, as commonly refered) into his asshole. female (or another male) gets on their knees and faces the male's asshole. the kneeling individual proceeds to give the standing male a reach around while simultaneously eating the cucumber as it is slowly being pushed out of the standing male's rectum. once the cucumber has been eaten, the standing individual will then shit in the kneeling individual's mouth, thus administering the "devil's food" portion

When you're being horny (especially around friends) and as a result shame ensues.