Top definition
When taking a massive dump, backsplass is the the effect of the dump causing water to splash against your ass.
Not only did I have to whipe my my anus, but I got water all over the rest of my ass. Fucking backsplass!
by Emurfo October 22, 2013
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

Alphabetical list