A fork of Rural Dictionary
The substance that would come out of your thumb, if your thumb could cum.
Derek: "This chick sucked my thumb so good, I thought I was gonna cumb"
Abbreviation for "chuckling under my breath." Used when something is mildly amusing; tickles your funny bone.
Mike: So I was making out with this girl the other day, and I got this massive cramp in my leg and fell off the bed!
Caity: cumb
The combination of "cum" and "crumb". Usually created in the act of wiping the cum off from your manhood with a Kleenex, then immediately, or soon after, wiping off some crumbs (probably Nabisco brand Chocolate Chip Cookies with 25% Reduced Fat) off of a surface with the said Kleenex; creating Cumb. Not recommened for consumption, unless you're a chick. That is totally fine.
Dude, is that Cumb in your wastebasket?
Uh, you mean cum? Probably.
Nah, I think I see some cookie crumbs in it, too...
The bed you masterbate into when staying solo in a double bed hotel room. The bed itself is used as a cum rag, and no clean up is necessary.
"Make sure to use the less comfortable of the two beds as your cumbed, because afterall, you won't be in it for too long."