Top Definition
The most irritating thing in the world. while one takes a fairly large dump, when it hits the bowel water it makes a "sploosh" sound. Now splooshback is when after the sound that nasty bowel water splashes back all over your ass
Dude 1: Dude were have you been?

Dude 2: Sorry bro had a bad splooshback in the toilet
by monsta7144 September 13, 2011

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