The sign of a Death Eater in J.K. Rowling's Harry Potter books. It's a skull with a snake coming out of it, pretty much. It's marked permanently on their wrist when they become a Death Eater.
Draco was totally acting like a pimp and showing off his Dark Mark.
by Gryffinwhore December 20, 2010
1 more definition
An obnoxious conformist who is neither original or witty.
People who chirp Chuck Norris jokes are such darkmarks.
by Bendilin October 02, 2006