fatass-tic 

Like fantastic, but referring to fatasses. Can be used with food, places, workouts, etc.....

A: Hey did you go to the party?
B: Yeah it was fatass-tic! There was food every-fucking-where.

fatass-tic by ThLatinProdigy May 7, 2008

fatasstic

A fantastic large person. A pleasantly large rump is also acceptable.

That chic be fatasstic!

fatasstic by mYsteriousL December 24, 2011

fantasstic 

A wonderful, superb and remarkably nice ASS.

That cuntfident bellybutton pierced, tatbooty'd slunthore has a butt that's totally fantASStic! I'm no clitiot - so I wouldn't ignorgasm her like every other enigman.

fantasstic by Jeff D October 21, 2005

flatasstic 

If a chick is otherwise fine but her ass is lacking, she's flatasstic. Usually used to reject an attempt to rate her as a dime.

Yeah, she's tight as hell but she's still flatasstic.

flatasstic by Machete April 11, 2005

trip the light fantasstic 

to dance, boogie, or otherwise get down

Hey babe, let's blow this popsicle stand and hit the club. There after we will trip the light fantasstic.

trip the light fantasstic by SiriusLupin April 9, 2006

Fanasstic 

An incredible or 'Fantastic' ass or bum (booty)

Tina: Mike, how do these jeans make my bum look?

Mike: Fanasstic!

Fanasstic by maryandbill July 30, 2008

trip the light fantasstic 

when someone fucks up everything they have with someone who's body (esp. the nether regions) they are obsessed with

J.D. had the best of both worlds for a while....but he chose to trip the light fantasstic- now he needs to live with his decision

trip the light fantasstic by Meadow Soprano October 25, 2005