Originally the act of smacking the cunt, but more oftenly used as an insult. Comparable to other insults like dumbfuck or dumbshit. Can also be used as a noun.
AkA/crumb-sack/n.Any marketable packaging of broken bits of a commodity generally sold in a complete form; A whole or parted commodity sold at sale below the usual market price in that the item consists of marketable piece-parts of the usual whole item purchased.
"I see the green cookies have sold out, can you make me a crumbsack from those broken pieces?"
"That's what I like about Juan, he makes a dang good crumbsack!"