fadistic 

Insistent that everyone around you adhere to every fad that comes along.

I can't hang with her. We gotta do whatever's fashionable at the moment. She's positively fadistic about it.

fadistic by Cynicool May 11, 2020

fadastic 

It is a combination of the word "fad" and "fantastic." Used in the sarcastic tense when some new fad pops up.

Do you wear eyeliner?

Sure

Are you a straight male?

Yes

How fadastic.

fadastic by kevin December 6, 2004

fagistic 

In reference to the doctrine of fagism

Fagistic beliefs are more common than ever among the American population.

fagistic by Joseph A. Brinkman, PhD November 6, 2004