look up any word, like b4nny:
 
1.
Known as the main man behind the games Half life and Half life 2, and is CEO of Valve Software.

Also a slang term for a game being late or delayed.
"OMFG Team Fortress 2 has been GABED!!1one1"
by Dead_Martyr September 15, 2004
 
2.
A large hairy beast. Though rarely seen, this beast can be found in the United States. This is an endangered species so hunting it would be illegal.
Bigfoot is the closest representation I can think of.
by that d00d September 15, 2004
 
3.
The co-founder and CEO of the video game studio known as Valve Software. Gabe serves as the unofficial face of Valve; the studio is widely associated with him and he is widely associated with the studio.

Valve are infamous for their long development cycles, with games that can be in development for as long as 9 years. Combined with frequent delays, these long development times have created the Valve time phenomenon.
Many in-jokes about these delays and long development times were formed. These jokes often make fun of the studio and Gabe himself, calling him lazy and mocking his weight. He is also pictured as a rather greedy man who wants to "keep Half Life 2 Episode 3 to himself" and commonly makes obscure excuses in order to delay it farther. One of the largest spin offs of this small meme is the nickname "Gaben".

Most users of these jokes are found in large Valve communities, such as the Team Fortress 2 community and the Half Life community.
Ex. 1:
A: "Why Valve aren't releasing Episode 3 yet?"
B: "Because Gabe Newell ate the Episode 3 game files."
Ex. 2:
A: "What happened to the new Left 4 Dead update? I should have been out almost 3 days ago!"
B: "Gabe delayed it again."
by TheYeIIowDucK May 13, 2011
 
4.
to be sexually attractive.
DUDE! That chick is GABE NEWELL!!
by Revenge December 23, 2004