The fat that overflows out of the sides of a female's lowrising pants (kind of looks like the crust of a muffin). She shouldnt be wearing them if she has muffin crust.
by ndn September 4, 2005

After felching badly, with time, the anus gets crusty, so the felcher has to go back and Pizza Crust to finish the job.
Also used when semen is ejaculated into an anus, but never retrieved by felching. Then someone Pizza Crusts.
Also used when semen is ejaculated into an anus, but never retrieved by felching. Then someone Pizza Crusts.
"I guess this bitch got mad when I didn't felch properly, because in the morning she made me go back and do some pizza crusting."
by Jessticle Cockins October 5, 2008

a person who appears crusty or raggedy, when somone is a crust bucket a group of people may "bool-crap" on them.
by Hoael June 2, 2010

When a ho gives a guy a rim job even though she is aware that he has crusty shit stuck in his ass pubes....
by Mr. Bucknasty April 19, 2009

by mnerms092 June 4, 2007

When you have dust on your booty and tthen it turns into booty crust
Also: a wierd Mexican with glasses
Also: a wierd Mexican with glasses
by Alberto bushnell March 19, 2015

by SlappyMeats March 2, 2007
