Mudbutt

When a person ends up needing to wipe their butt again after time has elapsed since their last poop. Normally this occurs for one or more of several reasons being, bad wiping technique, thick and sticky poop consistency, and hot/humid weather conditions.

I was rushed out of the bathroom while pooping at work earlier today and now I have mudbutt.

MudButt

During intercourse, when your spouse/partner poops while giving them anal, thus getting this all over their butt.

It was disgusting, Mary had mudbutt last night.