There is a cult for Crumby Rabbits variations on which extend all the way to a deep casserole dish called Baked Rabbit and consisting of alternate layers of stale bread crumbs and grated-cheese crumbs.
What with no bikes allowed on parkways, and skirting around crumby looking neighborhoods, it takes me at least a week of expeditions to find the right part of the Belt Parkway to start checking the filling stations.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "crumby" in a variety of sentences. We hope that you will now be able to make sentences using this word.