A person who is just below a retard, but can still function. Also is someone who can manage to hold a job, but screws everything up.
by Cookies0926 May 26, 2016

Full Definition
- Crumb butt: (n) when an unclothed person's posterior who is lying on a mattress or couch has left over food particles stick to it.
- Crumb butt: (n) when an unclothed person's posterior who is lying on a mattress or couch has left over food particles stick to it.
by TheOriginalCrumbButt November 6, 2013

Thomas and robert are experienced butt-spelunkers, every day they enthusiastically explore eachothers anal cavities with many tricks and techniques!
by RandomPlatypus June 15, 2018

by Crazy whiteboy October 10, 2023

by friendlyneighborhoodsidehoe May 20, 2022

by Brownbear703 June 30, 2018
