dorkface killer Share definition Flag (derogatory)a really idiotic person whose actions are found to be extremely irritating. not to be confused with dork. I can't believe she stole my cell when she left. What a dorkface killer! dorkface killer by Slurpinin July 21, 2006 0 0 Get merch Get the dorkface killer mug. Buy Now — $32.95 See more merch