look up any word, like bootylicious:
1. 'lo
A cooler quicker, lazier way of saying hello.
Jim: " 'lo!"

Frank: "who is this?"
2. 'lo
An abreviation of 'Hello'. Not LO which is often a typo of :P.
You: Hey.

Me: 'lo
hello lol :p lo 'lo
by word_freak Apr 30, 2011 add a video
3. 'lo
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?
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