1. hoe with a crusty hole that you should stay away from
2. that crack in a couch or chair that has a large amount of crumbs and small lost items
Ex for 1: "That chick is a crumbhole."
Ex for 2: I lost my pen and had to dig in the crumbhole for it.
a skank hoe with a crusty hole that you should avoid
"Don't do it bro... everyone knows that crumbhole has been around the block."