jawntastic 

An adjective to describe EVERYTHING, good or bad.

Mr. Morris's class is jawntastic

jawntastic by nuhtowel November 26, 2007

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

Juantastic 

When something is so cool and awesome at some point it ain't fantastic no more it becomes junatastic.

-Yo Nicolas check this shit out

-It's Juantastic

Juantastic by PamelaChu13 August 18, 2016

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

Jafftastic 

Something so fantastic it makes you want to spaff in your pants.

Andy: Oh my god Ben? Did you make this asparagus soup?

Andy: Why yes Ben, I did.

Ben: Fuck me. It's bloody jafftastic!

Jafftastic by Encyclopaedo July 19, 2010