Top Definition
The word lmaw was first typed in the popular pc game counter-strike. The word lmaw was meant to mean Light Multi-purpose Assault Weapon, but was misinterpreted to be a typo of lmao. People started to say lmaw while they didn't know what it actually meant, thus is became the ultmate lmao substitute.
A. Hey man, i failed my pe test.
B. lmaw, you got pwnd.
by heroin August 19, 2006
1 more definition
1. A Typo of lmao
2. the sound a bird makes
1. Lmaw, i know!!!

2. *birds flying through air* lmaww! lmaww!
by says who?! April 05, 2009

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