A number so absolutely insanely absurdly large that it has basically no practical real world use other than a random person wanting to sound cool by saying this. Point is, it’s equal to 10^googolplex or 10^10^10^100 or 10^10^10000000000000000… (with 100 zeros). Basically the only practical situation this could be used in is apparently “the universe resets via quantum function”, which is still larger. The number 10^10^10^100 is also called googolduplex or googolplexian.
Person 1: hey, Person 2, do you want to here an insanely large number with basically no purpose?
Person 2: ye
Person 1: it’s called googolplexplex it equals 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000…
Person 2: ok i get it, it’s so long that it goes past urban dictionary’s 1500 character description limit