(n.) A beautifully endowed buttocks. Distinguishable by either it's size, shape, texture, bounce, or proportion. A donkey may only be considered solid if the observer (given the opportunity) would undoubtedly choose to salt it. (see 'Salted Donkey')
"That is one Solid Donkey"
by TheDonkeyMaster March 30, 2010
1 more definition
"The solidity of the donkey relies purely on its ability to be salted." -Plato (circa 400BC)
Damn, her solid donkey has been un-salted for far too long, for sure ehh?
by Fish Stix March 29, 2010