1 definition by Mr. Sexybeast

The acronym for the game Left 4 Dead. Left 4 Dead is a first person shooter Zombie-Survival based game made by Valve. In the game, you face thousands of zombies with other teammates in an attempt to escape and flee the growing infection. The game also is multiplayer, allowing NPC controlled allies to become actual players. The demo for Left 4 Dead was released on November 6th, 2008. The actual game was released on November 18th, 2008.
Guy 1: Hey, wanna play L4D with me?
Guy 2: Sure, I'll start the game up!
by Mr. Sexybeast November 17, 2008
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