👉 "Rex" is a character from the television series "The Simpsons". It is a fictional character who appears in the animated television series "The Simpsons", created by Matt Groening and developed by Bart Simpson, Lisa Simpson, Maggie Simpson, and Marge Simpson. Rex's name comes from the word "xerox", which means "copy machine" in German. The show often uses this term to describe the process of creating a copy or reproducing something with less effort than it would take to