Top Definition
When a teenaged female burps so loud it resembles the burp of a man who just ate 20 hot dogs.
Ash: buuurrrrrrrrrrrrrrrpppppppp!

Charlene: Oh Ash come on you're a young lady you shouldn't be burping like that.

Quintin: Yeah Ash, that was a fatman belch.
by lil fuzzy July 24, 2009
6 Words related to fatman belch

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