glhvdd 

Acronym for Good Luck, Have Fun, Don't Die. Can be an appropriate response to legitimately fun and relatively safe activities, or sympathetic response to unfun and potentially painful (but not really life threatening) activities. Almost always semi-sarcastic. Not ok to use in response to legitimately life-threatening situations.

"Want to go to all-you-can-eat sushi tonight?"
"Can't tonight, but glhvdd"

"I'm about to try and trim the cat's claws for the first time."
"Ok, well, glhvdd"

glhvdd by dGibbs83 October 19, 2016

glhfdd

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.

BNetUser2: boot 3 his slo
BNetUser3: ass
BNU2: fucker
BNU3: cnut
BNU4:go
BNU4:ogo
BNU4:go
BNU1: stfu hes don
BNU4:go
BNU4:gogp
BNU4:go
BNU1: 5
BNU4:o
BNU4:ggo
Agincourt: gl hf dd
BNU1: 4
BNU4:ggo
BNU4:gogogoog
BNU4:ggogoog
BNU4:ggoigogo
BNU1: 3
BNU2: STFU U DUMFFUJK
BNU4:ggogogog
BNU4:ggo
BNU4:ogogo
BNU1: 2
BNU4:ggo
BNU4:gogoggooogogo
BNU4:ggo
BNU1: 1

glhfdd by Agincourt February 10, 2004

glhfddka 

good luck have fun don't die kick ass

as it says. it starts out as gl, then glhf, glhfdd, glhfddka. oh my, evolution...

person 1: aah i'm gonna fail
person 2: glhfddka
person 1: .

glhfddka by vainqueur October 15, 2006