Top Definition
The cotton sediment that aggregates in a mans buttcrack from the grinding action of his ass against boxers throughout the day.
After wearing the same pair of boxers for three days straight, I pulled a lump of crumbis from my ass big enough to qualify as a living creature.
by Dehgeh December 24, 2008

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.