Top Definition
A T-shirt that looks good even when one has gained a significant amount of weight. The mentioned t-shirt tends to have a random and/or stupid graphic upon it.
Gerald: Hey, that t-shirt looks really good on you!

Flanagan: Yeah, it's my fat boy special...even though I'm currently fat as hell, this t-shirt makes me look not so obese.
by Mr. Flanagan Peterson November 22, 2011
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