Jiztastic 

Something Extremely Awesome, similar to an orgasm.

Oh man that Velveeta Mac n' Cheese was Jiztastic

Jiztastic by Akkattakk April 30, 2010

Jacktastic 

A person named Jack who is fantastic.

"Man that guy Jack is fantastic"
"He's fucking Jacktastic"

Jacktastic by Jack Likes Fire August 2, 2007

Jentastic

a sensation one feels in the presence of a beautiful smart girl that is named Jen. The feeling is one of numbness and awe.

John gets a jentastic sensation everytime this one girl named Jen is nearby.

Jentastic by John Duckworth May 18, 2008

joltastic 

The way one feels when drinking jolt; a combination of the words 'fantastic' and 'jolt.'

I just drank two canisters of Jolt and life is GOOD. I'm JOLTASTIC!!!

joltastic by e.a.nowakattack March 17, 2008

Joketastic

A term used when one finds something HIGHLY amusing.

A Joke that is Fantastic.

- Did you catch Ponderland yesterday?

- HELL YEAH! Russell Brand is Joketastic!

Joketastic by SophieCalpol January 17, 2009

juntastic 

events or objects that are impressive beyond words of common day lanuage.

"did you see that? that was like...juntastic!"

juntastic by Andrew Jun April 24, 2006

Janktastic

Fabulously janky. The jankyist of them all. The opposite of fantastic.

My ride is janktastic now that it's missing both headlights.

Pete's new shoes are janktastic.

That ducttape holding your shelf up makes your cubicle look janktastic. hollaaaaaa

Janktastic by KarlaS May 6, 2006