Greek internet abbreviation for "Kane Me Trelo!" (english: "Drive me Insane!). The phrase is used when something exciting is said or proposed to you and drives you insane in a positive manner. The actual phrase in real life is expressed ecstatically in a loud vivd tone and so the internet abbreviation should be in upper case followed by an exclamation mark.
at 20.35 lampros said: yo. tonight @ Priza bar. free drinks to all topless girls. lol. wanna go?
at 20.35 kapsel said: KMT! for sure! c u there dude!