One Turn Kill
One turn kill (or OTK) is winning in a single turn. This is done in a myriad of ways, most of which revolve around finding a way of draining the opponent's life points, however, many of the potent OTKs focus on causing your opponent to run out of cards. Other popular OTKs involve Exodia and other cards that provide an easy route to victory.
Related ThreadsExodia One Turn Kill - last post by @ Jun 9, 2011
4 One Turn Kills?! In one deck?! Ridiculous, Awesome, and probably going to pull Cyber Dragon back to limited status - last post by Kent @ Jan 27, 2011