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1 definition by Sffil

A morbidly obese fat cow who has an aversion to any form of even mildly healthy food. Completely bereft of any physical beauty, this species of water buffalo can often be found feeding at KFC, the WalMart cafeteria and other such establishments. See swamp donkey, muck mule.
I wouldn't let that salad swerver of a muck mule mount me for fear of suffocation or paralysis.
by Sffil May 30, 2008