one who indulges himself in the art and science of tits. This can range from everyday observation of breasts to the occasion of playing with a big-titty-ass-bitch.
Sometimesfollowed by numbers in order to show a level of Titmastery.
The name of a specific player of games that has been on the internet a while. He happens to be good at games, and at one point, he was well known.
1. Damn, got killed by tntmaster1970 again. 2. Haha. I killed tntmaster1970. He's so bad at games. He can't kill anything. He can't fight his way out a wet paper bag.