Definitions
1.nounA small van, bus, or railway car used to transport loggers or other resource workers to and from the worksite.
2.nounA cow with a crumpled horn.
3.adjectiveBad; poor."Do not bother buying crummy knives if you are serious about cooking."
4.adjectiveFull of crumb or crumbs.
5.adjectiveSoft, like the crumb of bread; not crusty.