a donkey toboggan is when you are ------- a girl in the butt at the top of the stairs and you donkey punch her and ride her down the stairs like a toboggan
Donkey tits are the mammory glands of a sloppy, thick bodied female. Generally the breasts of a swamp donkey. Donkey tits are generally the only redeeming quality of these husky heffers, and as such they will commonly be over exposed.
Guy 1: "You see that fat girl with half a shirt on"