The act of giving someone fellatio, while submerged in a bath tub. Stipulations include, the giver wearing a snorkel, and the receiver defecating a floater so it bumps into the givers head, effectively acting as the shark.
A shit-shark is a term for a white chick that only fucks nigs. Often they think it’s somehow moral, or makes them more worldly, but it just makes no self-respecting white man want to touch her in the future.
Debbie may look alright, but I heard she was a total shit-shark in the last town she lives in.
A Shark Shit is the disgusting act of someone swimming at the beach that is too lazy to get out of the water and use the public restroom like a normal person, instead they take a shit right there and then in the ocean.
"Dude, its freakin cold out there and those restrooms dont got doors on the stalls; Fuck it! we shark shittin today!!!"