sickgnarsty 

something that exceeds normal words to describe it. it is more epic than sick, sicknasty, sickgnar, tight, and other adjectives.

may refer to snowboarding

Dude 1: Dude i can't believe it's snowed 420 inches in the last week! We're gonna have some sickgnarsty snowboarding this weekend!

Dude 2: Like a boss.

sickgnarsty by jeremice March 24, 2011

sick nasty disgusting 

Although this phrase sounds derogatory, it is in fact a very, very positive thing. It is used the same way as "cool," or "awesome" in modern language.

Guy: "That nollie mctwist backflip was sick nasty disgusting!"

sick nasty disgusting by Ugly Dude Guy May 24, 2008

Sicktastical

sick, amazing, purely awesome

Luke: Dude look at my sweet BMW.
Alex: Wow that's a sicktastical bimmer...

Sicktastical by The Sick Bomb August 14, 2008

sicnasty 

something crazy, awsome, unpredictable, unimaginable, the best ever.

This girl walked by, and I turned around and she had a sicnasty behind.

sicnasty by Shadood July 2, 2007

Totes Def Obvi Sick Nasty Dlaxin Brah 

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

Totes Def Obvi Sick Nasty Dlaxin Brah by MacMacAttack November 10, 2010

Stacknasty 

Jerry Stackhouse when he is draining his trademark corner three.

Ohhhh crap, did you just see Stacknasty drain that trifecta?

Stacknasty by Dusty Struthers March 4, 2008

Sick Nasty 

more than sick; the extreme form of "sick"

Holy shit dude that was some sick nasty shit you just did!

Sick Nasty by SikkNastE March 24, 2010