Gagantastic 

Lady Gaga is fantastic. so that makes her Gagantastic
Gaga+fantastic=Gagantastic

Helene: Lady Gaga is Gagantastic
Helberth: ur so right... she is Gagantastic

Gagantastic by helene123 August 2, 2010

gagtastic

an event or person who is found to cause sickness or revulsion.

the show wasn't that great, in fact the naked old people were particularly gagtastic.

gagtastic by akacanadianbacon October 6, 2008

Gavintastic 

1. Adjective - The highest degree of sexual awesomeness. It can only be used to describe a truly skill man whore.

Dude! You banged that hot chick, damn bro thats Gavintastic!

I just slept with three girls in one night, I'm freaking Gavintastic.

Gavintastic by samurai assassin May 16, 2006

Gagtastic

A word used to describe something utterly disgusting, but with a comedic twist. It makes you gag, but it's fantastic. It's gagtastic.

Adam: Hey, you know that girl from the triple date last night?

Austin: Yea, she was sexy

Adam: Dude, she's got encopresis...

Austin: Wow...that's gagtastic

Gagtastic by Gotadime March 3, 2010

grantastical 

one of Don King's crappy words, meaning fucking cool.

You're about to see the most grantastical fight you've ever seen...ur gay.

grantastical by Anonymous September 3, 2003

gigantastic

Term used to describe something gigantic and fantastic at the same time.

That park is gigantastic!

gigantastic by MACMAS October 30, 2013

Grantastic 

An Adjective which is a combination of "Grand" and "Fantastic".

Person1: Hey, how ya doin?
Person2: Grantastic!

Grantastic by Polarkoala July 23, 2004