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When you need a wipe but don't have to shit, which is caused by having a dirty asshole.

There are three possible causes for the need:

1. You haven't wiped sufficiently
2. Your butt crack is sweaty
3. You made a fart poop

It is different than swamp ass as heimowing aims at easing discomfort in the internal butt crack, while swamp ass has this aim but for the external buttcrack; Heimowing is when you go for the good stuff.
Friend 1: Hey guys I'm just gonna run to the bathroom quickly. I'll be back in a few.
Friend 2: U taking a piss or crap?
Friend 1: Neither, I just need to heimo.
by rubentejada September 13, 2017
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