Battle.net Lingo: Good luck, have fun, and don't die.
Also: gl hf dd
Additional two-letter bits of text
may be added in addition to, or in the place of, any of the preceeding abbreviations. They include, but are not limited to:
ka - kick
ass
dl - don't leak (for use primarily on Tower Defense maps)
no bs - no backstabbing
Seen as a
game is launching, during the five-second countdown.