When you haven't jacked off in a month or two.
by sparkyjo December 16, 2014
When you nut all over your stomach, and to sleep without cleaning up, waking up with dried jizz in your stomach
by Axel DT April 12, 2019
When one takes a shit and doesn't clean themselves, it dries, and another then has anal sex with the dry, dirty, poop butt.
"After drinking and chinese food last night, we got back to my place and (i didn't have and toilet paper) we started getting freaky, needless to say i got the crusty muffler."
by pennyrockit October 05, 2011
To masturbate and allow the sperm to stream down ur dick, leaving it until it dries then fucking a girl.
Dude, I was wanking hard last night until my girlfriend called me and said she wanted me to come over. At first I was a little pissed, but then I decide to just give her a crusty willie.
by J I Z Z L E March 17, 2009
When someone puts melted marshmallows where the sun don't shine. After the sticky surprise melts you have a crusty Michael.
by monkeehumper69 November 18, 2010
i didn't clean my butt well after having explosive diarrea, and now i have a bad case of butt crusties.
by Allen T. McIntosh III April 27, 2003
by Allybugjr April 23, 2017