kthnxdie 

A way to abruptly leave an IM conversation, whilst wishing death upon the other person.

"i hate u kthnxdie </3"

kthnxdie by sam_dino May 2, 2006

kthxdie 

Variant of kthxbye and kthxbai, but with a mordant edge.

The original term kthxbye (okay, thanks, bye) is generally used to terminate a (n online) conversation in a quick manner, often with slight insult to the other party. The implication is that the other person is not even worth talking to.

kthxdie is like that, only more so, and with an added death wish.

Obi wan Kenobi: You can't win, Darth--if you strike me down, I shall become more powerful than you could possibly imagine.
Darth Vader: kthxdie.

kthxdie by Lady Chevalier June 16, 2005

kthxdie 

like kthxbye only with a bit more edge/wit

I just had sex with your mother.
kthxdie

kthxdie by catspleen January 19, 2003