It is the act of not wiping after defecation and leaving the excrement to fester on ones anus therefore hardening and turning into butthole cheese.
"Dude, you should wipe a lot more often!"
"Why?"
"Because your ass cheeks are caked in butthole cheese!"
by Birch Guy December 2, 2014
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Cheese exiting through your butthole. Can be liquid, like nachos, or chunky, like blue cheese. Usually causes the feeling of constipation.
I can't have sex with all this Butthole Cheese on my ass!

My Butthole Cheese is preventing me from pooping.
by dontflicktheknockers February 11, 2012
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