Not to be confused with the derogative term, fatass, a shatass is someone who has eaten excessively to the point of immensely needing to shit.
Guy 1: Where we tryna eat?
Guy 2: I don’t know dude... I’m down for anything other than Mexican food.
Guy 1: What’s wrong with Mexican food?
Guy 2: Last time I ate a burrito, I nearly shat my brains out.
Guy 1: Haha, you’re such a shatass!
by JakeHasUD March 16, 2019
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sharting when someones dick is in you ass.
guy 1: ay dude why you shatass last night?

guy 2: im sorry but it feels so good to shatass!
by cookie dunker January 24, 2022
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When a person shits in thier wetsuit while paddleing a surfboard out to the line up
Peter gambled and lost, and thus has mushy shatass
by downtiggidy August 17, 2003
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persistent shitting of your ass. usually diahrea and/or mud butt
Damn! I keep shitting my ass.
Looks like you have Shatass disease.
by stu lanely April 7, 2006
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