The lowest level of a bum ( vagabond).
I wasn't going to put her out, but it became very apparent that Aaliyah was a CRUMB BUM
by Nicole prescott May 01, 2019
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A person who when eating leaves copious amounts of food debris and crumbs on the table, chair, and surrounding floor.
Did you notice the mess that Dora left behind after she ate? She’s really turned into a crumb bum.
by rondubbs June 07, 2020
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Crumb Bum /krum bum/ n. A Bum that lives solely off of Crumbs.

or a Bum that is very Crummy.
1: "Mary tries to catch the train before the Crumb Bum gets there and asks for money or food".

2: "Man that guy's shoes are so shot, You'd think he got them from a Crumb Bum! "
by DALLAS JOE October 03, 2018
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