Definitions by ThrottleItOut

Swamp Donkey 

A motorcycle which spends a majority of its time submerged in water, lying on its side, or sunk up to the axles in mud, silt, or sand.

See also: bush pig, clapped out piece of shit, dr650.

No bro, I swear the Swamp Donkey runs better with the airbox full of muddy water.

Swamp Donkey by ThrottleItOut June 12, 2019