Barrel-Fuck

Also called "The Georgia Sunshine", "What are you doing step bro?" or "Old-timer's fleshlight" - To capture something (particularly an ape such as a baboon or gorilla) within a container (typically an empty barrel or large drinking keg) , tip it over to where its behind is facing up and pound said thing's guts to oblivion.

"Ever barrel-fucked a baboon buck nekked in the middle of the Sahara, balls-deep in pink so nice ya gotta tap it twice? That's how it feels to drive a Ford F-150."