Top Definition
n. when you're taking a huge dump and some of the liquid in the toilet splashes back up onto your ass
Dude, that burrito I ate came back to haunt me, there was toilet backwash everywhere. On my ass, in my ass, in came out of the toilet and onto the ground.
by Jalapeno64 January 17, 2009
7 Words related to Toilet backwash

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