sickatight 

a combonation of the words "sick" and "tight" therefore increasing the strength of the word

Man did you see tyrone and andre fight? That was sickatight!

sickatight by weslums February 4, 2010

sicktight 

Another word meaning "cool" or "hip". A combination of the words 'sick' and 'tight'. It is used when a person can't decide whether to use sick or tight to describe something that has happened, ergo, they use "sicktight."
Other expansions of the word include "super sicktight" and many others.

"Dude, that party last night was sicktight!"
"I know man it was awesome."

sicktight by Edward Charles McSweeney November 1, 2007

SickTight 

Something that is cool or something that blows your mind.

Jimmy: Dude, I just saw the craziest thing in my life.

Response: SickTight

SickTight by FOUNDATION_SKATEBOARDS January 30, 2008