crumb-bum 

A term of utter contempt for a worthless, meretricious person, a no-account, with the implication that s/he is of low moral character.

A "bum" has long been an Americanism for a tramp, vagabond or homeless person (and lacking in the "backside" meaning as in the U.K.). The "crumb" may come from the irritating or useless character of bread crumbs or toaster crumbs, but it is possible (despite the spelling) that the first syllable derives from "crummy" as in worthless, detestable. The internal rhyme solidifies the expression.

.
"I have no use for my daughter's ex-husband. Ever since the divorce he drifts from job to job and is always behind on child-support payments. He doesn't even send his child a birthday card! As far as I'm concerned, he's a complete crumb-bum."

.

crumb-bum by al-in-chgo August 18, 2010

crumb-bum 

Old American hobo slang, derogatory for a fellow hobo of really bad character.

The word "bum" is old hobo jargon for a hobo who don't do any honest work for his food and shelter, and as a such is poisoning the towns and communities for hobos with well intention.
"crumbs" is hobo slang for lice, which is something you for obvious reasons don't want to catch, especially if you are a hobo with enough concerns already in regards to everyday survival.

When the two traits are combined you get a character you certainly don't want to be a travel companion with, A person who will leech off your efforts and only give you a head-lice infection in return.

-Cigarette in Emperor of the North was a crumb-bum he just tagged along with A No. 1 and was of no help when it counted.

-Don't be such a crumb-bum take a shower and get a job!

-The modern elite are crumb-bums, living off the spoils of a once rich society they fail to maintain.

crumb-bum by Danmark July 9, 2023

crumb bum 

Someone who is acting like a complete arse, affectionate insult

You crumb bum

crumb bum by MH June 6, 2003

crumb bum 

Someone who isn't doing the work they're supposed to, who's being lazy.

Yo, crumb bum, get to work!

crumb bum by Eriak July 22, 2009

Crumb Bum 

Not just being a bum but the lifestyle. Going around care-free, looking any type of way, acting any type of way.

Arely said,"Alonté wore sweat pants and a baggy sweatshirt to school instead of the uniform; he also skipped all of his classes today. A classic crumb bum."

Crumb Bum by Tyreecro January 17, 2012

crumb bum 

a person with a particularily negative attitude; often seen in irish men who believe in karma.

My neighbor is being such a crumb bum.

crumb bum by princess January 19, 2005

crumb bum 

when you eat in bed, then later have sex in it, you will get the crumb bum.

this morning i woke up with mad crumb bum, now i know never to eat crackers in bed.

crumb bum by rodolfogustavo October 4, 2009