When you do motor boating but with said persons butt cheeks instead

When snorting coke off a toilet seat in a certain popular Sydney nightclub, some coke may drop and plop inside (unaccompanied or not by bodily emissions). The process of fishing it out is known as The Sydney Submarine

When you smoke weed out of your asshole, lighting and inhaling the weed through your asshole, while a girl sucks you off and you exhale the smoke through your penis, so she can therefore get high as well.

Also called bennies, benzedrine containing amphetamine.

a song by the Beatles

When a person of Asian descent gives a blowjob in a bathtub

When receiving a blow job you say you're going to nut but instead fill their mouth with piss