Any unwanted leavings of any kind.
Are you going to eat your pizza crustings, buddy?
by Ghostington February 16, 2014
Can you define these popular missing words?
The sorority girl's term for being lazy while wearing sweats.
I'm crusting on the couch today.
by whitleann45 January 08, 2011
when you drink so much you get a alchohol crust around your mouth
wow man i must have been hammered last night, i woke up with a crusting
by trunkface January 04, 2006