Infinity times infinity. Far bigger than a million, billion, trillion, zillion, killion, jillion, padillion, fafillion, or kasmillion. Oddly enough, if you were to take 10,022 Jupiters and land them on Jupiter, they would weigh exactly one Krofdillion tons. Jupiter would then collapse along with the rest of the universe.

Adj. Something that is expected to have a long lifespan by virtue of having existed for a long time, based on the lindy effect, named for the New York restaurant Lindy's, coined by Albert Goldman and popularized by Nassim Taleb.