CD-ROMulan 

A media-storage device used in Star Trek.

I wonder if Lieutenant Commander Data kept all his files about alien foes on a CD-ROMulan?

CD-ROMulan by QuacksO April 1, 2021

cromulant 

Not simply used to refer to a frequently used word as per the use in "a perfectly cromulent word" but may be better defined as germane, or apt, synonomous with appropriate, or fitting.
This defintion suits both uses in The Simpsons' famous episode.

"a perfectly cromulent word"

"he has just embiggened the office of town crier with that cromulent speech"

cromulant by RathminesPimp October 26, 2004

chromulant 

valid, obviously correct, suitable.

i don't know what you're talking about, it's a perfectly chromulant word.

chromulant by the party mushroom May 19, 2004

cromulant 

abundantly used, proliferate, widespread, accepted

It's a perfectly cromulant word

cromulant by Matt Parker (parkman47) November 13, 2002

cromulant 

Over use of spray paint. Particularly many different colours seen together.

The graffiti was a cromulent and nauseating disgrace.

cromulant by Brett Burton April 22, 2003