kthnx is generally condescending. Like after a game that you won you'd say 'gg kthnx' Whihc amounts to "Haha, you sucked, go away"
by GarlicKnots July 22, 2003
A lame-core phrase lame-core girls say at the end of any and all myspace comments/bulletins/what-have-you
by Don Johnson April 08, 2005