Top definition
A chubby pudgy guy who often smiles with joy and delight when farting in the presence of others. Fat Neil often uses strange words and noises which he created to ward off evil lionesses trying to attack his dark mane of fart. While grunting these noises and words, a sponge like creature appears out of his constantly sore muscles to attack the nearest dirty and winging derp.
Guy 1: hey have you seen this new kid?
Guy 2: yeah look at those cheeks he must be a Fat Neil!
Guy 1: the derps better watch out for his spongy monster!
by A swan in bread April 08, 2014
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