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When defecating in a public restroom stall, after wiping one's anus, instead of dropping the soiled toilet paper into the toilet, it is tossed over the top of the stall into a neighboring stall occupied by the victim.
In the bathroom at work, I was taking a dump next to my annoying co-worker, so I decided to toss a stinky grenade onto him.
by TheRealArticle December 04, 2016
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