Top Definition
When a sweaty fat man sits on a burrito and someone finds it later and eats it.
Dude I was eating a burrito earlier and found out it was a Fat-man burrito.
by Lulu6262 March 06, 2010
1 more definition
1 Word related to Fat-man Burrito
A tortilla that a large man uses as a sweat towel, then is later stuffed with the traditional toppings of a bean burrito and fed to someone else.
Douchebag guy: Bahaha! your eating a fat-man burrito!

Guy eating burrito: Wtf!
by gary696969 March 06, 2010

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