A diss, in reference to a very fat, unattractive male who smells, plays video games and claims to be godly at them when all he does is play bots or cheats int he game. Also a very very very very gay camper in the CoD series. To be a tkitch is the worst of the worst. Tkitch is a low-life faggot who digs fat ugly chicks and masturbates with other men in order to be "cool". You do not want to be a tkitch.
"You're such a tkitch"
"FUCK YOU, how dare you call me that. You faggot"
"At least I'm not a tkitch"