Top Definition
A person that despite is fat can play sports very well and sometimes even better than the average athletes.
Person #1 : Whoa Ryan can sure run fast for a fat person

Person #2: Yea no kidding he's a world class fathlete
by sholom22 September 19, 2006

A guy or girl who loves sports but is fat or husky, usually has a big build and thick thighs
zach randolph and eddy curry are FATHLETES
by JC RIVERA December 20, 2007
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