gl 

refers to either good luck, or guild leader. The latter of the two is mainly used in World of Warcraft.

1. Gl pwning the horde, they are pretty good.
2. Is you gl online, ive been trying to join?

gl by Nico69 October 24, 2006

GL 

The Homosexual of the year.

A wannabe smart guy.

A synonym for the epitomy of sadness.

Put simply, GAY.

G00k!

Oh look at that guy over there, what a GL!

GL by !ajniN! June 23, 2008

gl 

good look or good lookin

LoLo- u droppd ur pen son
Dre- awwww shiit. thanxz slim gl

gl by Wilt Chamberlain Chain Swangin March 10, 2009

GL 

Gastric Lavage A procedure used to remove poison from a patient's stomach that was ingested.

1. I took an overdose today, and had to have a round of GL and that hurt.
2. OUCH. I had that done when I was 2 for taking baby asprin and they stuck a tube down my nose and into my stomach.

GL by stomachpump January 10, 2010

gl 

Granade Launcher

The most annoying thing in Call of Duty 4:Modern Warfare that is used mostly by noobs to gain easy kills without any skill.

GL Hater: omfgzor, n00b GL, learn how to playah
GL User: stfu

gl by skillznular February 14, 2008

GL 

short for grenade launcher

Shoot that GL through that window!

GL by SD Dynasty July 8, 2011

gl 

a word originating in the DMV (Dc, Maryland , Virginia) used on the internet as another way to say good looking out but shortened to good lookin' and is abbreviated over the internet as gl.

Two Friends are having a conversation over myspace.

Micheal: Ay bruh did you upload the vid of the two girls fightin at the gogo yet?

Chris: Yea I did it a few minutes ago.

Micheal: Oh Yea? gl bruh

gl by MasterPwner41 March 9, 2009