adj. Slang, -mi·er, also -i·er, -mi·est, -i·est.
- Miserable or wretched: a crummy situation in the family.
- Shabby or cheap: a crummy little rowboat.
[Probably from CRUMB.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.