look up any word, like cunt:
 
1.
Someone that hasn't wiped there butt in a while.
That person is a crust bucket.

Whats up crust bucket.
by TonyL January 15, 2006
 
2.
a person who appears crusty or raggedy, when somone is a crust bucket a group of people may "bool-crap" on them.
ahh look at that crust bucket *bool-craps*
by Hoael June 02, 2010
 
3.
a crustbucket is someone who is an old crusty curmudgeon. usually such a person is ugly, and sometimes smelly
i hate old crustbuckets
by Ziggy Stardust June 06, 2004