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When your stomach region gains a noticeable amount of weight after a substantial meal, which is then followed by taking a massive crap.
guy 1: dude, you see that girl over there?
guy 2: yeah.
guy 1: why is her stomach so big but not the rest of her body?
guy 2: Looks like she has a typical case of crapbelly.
by Jibbity Jub-Jub April 08, 2015
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