the most illest happening on planet earth ever.
Oh shit son, that was ill sick nasty!

That new Apollo Sunshine CD is pretty ill sick nasty.

Could be used when the world is about to berak into peaces from a metor and superman, batman, and all the coolest super heroes distroy it together
by poophead2q3523432 February 12, 2006
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The greatest thing since bagged potato chips. On point. Can be used to describe a person, place, or thing.
1: "Dude, I love your new car! Thats so sick nasty awesome!"
2: "Have you ever been to Salt Lake City? Its so sick nasty awesome!"
3: the definition of oral sex... Sick Nasty Awesome!
dope
chill
cool
bad ass
by xCURBCHECKx February 2, 2010
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Origins: Boston
the ultimate adjective for New Englanders
means extremely awesome
note: anyone outside of new england that says any of these other than sick will sound like an idiot. So i suggest not doing that.
by Leslo :3 March 19, 2011
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Instead of just the word "awesome", this word is used instead when more emphasis is needed, hence the sick and nasty.
"Yo man, that stuff's totally sick nasty awesome! Bangin!"
by Bangin Lil Bro January 28, 2008
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Generally from the nothern california region. One who drives lifted trucks with nor cal stickers on the back window. Not to mention rides motocross or bmx. They often wear DC shoes, long socks, small shirts, generic spy sunglasses, dickie's shorts with studded belts and oversised belt buckles. Popular brands worn by SNBBs would be fox, shift, skin, famous stars and straps, DC, etnies, and dickie's. They usually wear undersised shirts and have strange tatoos and piercings.
Billy calls things "hella sick" and fits the discription above. Little Billy is a sick nasty bro bro.

Trevor enjoys wearing fake lip piercings and riding his motocross bike. Trevor is definitely a sick nasty bro bro.

Timothy idolizes rick thorne and travis barker, he is probably a sick nasty bro bro.

A characteristic or thing that fits the sick nasty bro bro style, or is just flat out stupid can also be called sick nasty.

by Matt Hurko August 23, 2006
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1. When something is so awesome that normal phrases just won't cover it.
2. Describing that has exceeding amounts of coolness.
Dang, the new Dodge Challenger is Sick Nasty Poob Nugget Flex

Guy 1 - Did you see that chick walk by?
Guy 2 - Yeah, she was Sick Nasty Poob Nugget Flex!
by Eustice89 September 14, 2009
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Totally Definitely Obvious Sick Nasty Dinosaur Lacrosse Playing Bro. A term used for all those who play lacrosse. Commonly used to answer questions.
Bro 1: Did yous see the Duke lacrosse game yesterday?

Bro 2: Totes Def Obvi Sick Nasty Dlaxin Brah
by MacMacAttack November 9, 2010
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