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Used to describe the chainsaw bayonet on a lancer assault rifle or the act of using one in a funny or ridiculous scenario.
Proper use as a noun
Derek: I can't get kills with the hammerburst today.
Mike: lol why don't you just run up to them with the roflsaw.

Proper use as a verb
Jeff: lol this guys screwed its 5 on 1.
Matt: watch this I'm going to roflsaw him.
*matt chainsaw melees the remaining carmine*
Matt: suprize bitch you just got roflsawed!
by xxxsaphirexxx December 20, 2008
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