look up any word, like fluffer:
 
1.
A ho-bo, loser, idiot, fool and is completely and uterly stupid in everything that they do!!!!!!!!!
by Cat March 12, 2003
 
2.
One in a pleasant mood who exhibits a downward countenance, in order to elicit sympathy, affection, or a favor from another.
Charles lightly elbowed Jane, not buying her pout. "Don't be a crumbum," he said. She smiled.
by Pseudonym04c321e March 17, 2010
 
3.
1) An insult of high offense in Flying-Fox culture. It is similar to a human's "asshole," "dickhead," or "numbnuts," but far more vulgar.

2) The only appropriate description of Dr. Ivo Robotnik.
Tails: "Sonic will never help you; you, you crumbum!"
by Benji2525 June 11, 2013
 
4.
A person who cannot for the life of them clear crumbs off their bed. So they sit on it, and flatten the crumbs out and until the crumbs keep collecting. Eventually Stay away from this person at all costs.
Danngg, that girl Mareyeen is a Crum bum, all she do is sit on her bed flattening crumbs.
by Cheecheez September 12, 2010
 
5.
The same kind of 'Fat cat'. Meaning a person became rich in wealth by leeching on poorers.
They are mostly White, Republican, and upper-middle age. The most infamous of all, Richard Bruce "Dick" Cheney, currently the Vice President of the United State of American(aka Advisor of Halliburton). Running our puppet President on a leash like his own personal bitch.
Jon Stewart of The Daily Show: Fat cats and Crumbums

Fat cat is slang term which describes a rich, greedy person who, due to ownership of large amounts of capital, is able to "live easy" off the work of others. Often, those labeled "fat cats" will reap a sustantial financial gain from a business, while the business itself, and the people who are employed by it, do not. The term is also sometimes used to refer disparagingly to wealthy contributors to a political campaign. The term stems off from the fact that since rich people can buy a lot of food, they both tend to resemble each other, the owner and the cat, in girth of waist, haughtiness, and a holier-than-thou attitude.

-Courtesy of Wikipedia-
by EffGee July 02, 2006
 
6.
A really bad musician. Someone who lacks technical proficeincy on their instrument, as evident in by the music on thecrumbums.com
That guitarist is a real crumbum. He is so out of tune it sounds like he is trying to be experimental
by keithke September 12, 2010
 
7.
A random piece of debris and or food particle which accumulate in a confined area, and then, without your acknowledgment, fall into something in which you do not wish it to fall into
ex 1: shit, my grapey juice has crumbums in it..motherfucker left the lid off the juice jug.
by exzimazittitcackly February 02, 2009