Cannibal Trust

Listen up, buttercup. This joke plays on the irony of "trust" in a very dark way. Cannibals are folks who eat other folks. Oral sex, well, you probably need a dictionary. So, if two cannibals are gettin' it on, they're literally trusting each other not to bite... because, you know, they could totally eat each other. That's the messed-up joke. And you, my friend, probably clap when the plane lands.