Here is a public answer for anyone who stumbles onto this account:

Crewtive/crewtives are crewmate fictives from among us, its a label we made for us to shorten "crewmate fictives" anyone that is an among us fictive can use this label. We also thought it was a cute little name so we call us the crewtive-subsystem.

⚠️❗❗This label is not meant for ocs or characters in among us, among us fictives are the only ones allowed to use it, if you want a word for your oc/character use crewsona its a specific word for an among us crewmate character/oc.❗❗⚠️