adj - mean and nasty; hiding vitriol behind humour; someone with an acidic tongue that never fails to clear a room of all but other Demmons`.
Oh man, what a Demmons you turned out to be!

Dude, you are such a Demmons!

Obviously she is crying...that friggin' Demmons...
by GregOms December 13, 2010
a forget person that likes to run in circles and scream really loudly.
Wow, look at that demmon go!
by Tits-McGee May 22, 2009

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