Definitions by The Eerie Red Light

Rule 621 

Rule 621 states that for every famous person there is at least one fursona based on them.

Rule 621 is named after the furry website e621.net and is a subrule of Rule 34.

Searching Carl Lancaster just beings up a bunch of rule 621 fanart

Rule 621 by The Eerie Red Light December 6, 2017