To eat so much that you have to drop a load and while you are on the toilet you keep eating causeing yourself to have to continuousley take a shit. It is most commonly lnked to depression

CAUTION: Rotary-shitting can lead to obessedy and constipation
When my girlfriend lucy broke up with me I was on the toilet for six hours rotary-shitting
by Kid Cardashian November 7, 2010
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