Based on the term "redneck", "deadneck" refers to a stupid, non-thinking person, as in "dead from the neck up".
"You mean you've never voted in any election, deadneck?"
by Georg Znaeym April 26, 2006
If you smell like shit, you might be a deadneck.
by Pennyfeather Mandrake January 04, 2009
a term similar to necrofilia. when one recieves oral from a corpse, usually from an orifice other than the mouth. i.e. a slit in the throat, or an eye socket. claimed to feel better than that if recieving from a living creature
i aint gonna shell out money for a hooker when i could go to the cemetary and get some dead neck for free
by Angry Titan April 16, 2008