An acronym for "Nose Laugh", the short involuntary blast of air from the nose when you read something funny. Used when something is mildly amusing and air expels from your nose, but isn't funny enough to make you actually LOL, or "laugh out loud".
Jim: Yeah, I'm stickin' to my diet. I'm stickin' this here Big Mac right into my mouth!
Ty: NL
by NomenclatureOfOurTime June 01, 2015
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Not Life Safe. Compare to NWS, Not Work Safe.
Used for images that are highly disturbing or disgusting.
Person 1: (goatse)
Person 2: Gah, put a NLS warning, Jesus!
by Ssonic March 18, 2007
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Next Level Shit.
Used among traceurs/freerunners to describe crazy ass tricks.
payrunner: Hey bro did you see Team Farang's new video Boss Mode?
freerunner: Yeah I did, they threw some NLS!

payrunner: Hey did you see the shit Zyrken pulled at the Tempest Pro Takeover?
freerunner: Yeah man they gave him the NLS award.
by dnastyfreerun July 05, 2013
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Person 1: DAMN, that nigga David is an NLS.
Person 2: You bet!
by Moose1299 October 06, 2015
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An abbreviation for the phrase "no lie" often used via IM, Facebook status, tweet or text (or any form of written communication). Not usually said in person, unless you're a loser.
That cake was delicious, nl (no lie) I've got to have some more dude!
by nigga in paris December 20, 2011
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