1. Short for "Hello", most commonly used among UK-ish people.
2. A word only ever used before "and behold".
3. Slang for Halo. (Nerds only, for serious.)
1. Guy1: Lo.
Guy2: Lo.
2. Most of Jack's UD definitions suck, and lo and behold, this definition sucks.
3. Guy1: Let's go play some lo.
Guy2: No, let's go get some pussy.
by omfgsoAWESOME May 27, 2008
Refers to Halo, Halo 2 and even the upcoming Halo 3, which is quite possibly the best game ever created.
Yo Rob, wanna go play some 'lo?
by jalbs November 25, 2006
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