Turdeken Share definition Flag A random dumbass, who appears out of nowhere. The words Turd and Tekken combined. This word also implies the stupidity of the person. *whisper* Hey look its that turdeken dude of there, what a dumbass. I wonder if he is good at Tekken? Turdeken by JTML July 24, 2008 Get the Turdeken mug.