Invader Zim is an American animated television series (created by Jhonen Vasquez) that was produced by and subsequently aired on Nickelodeon. The series is centered on an alien invader named Zim from the planet Irk who is attempting to conquer or destroy a dark and satirical future version of the Earth. Zim's schemes are usually foiled by his mistakes, his hyperactive robot GIR, or by his arch-nemesis Dib, a paranormal enthusiast who goes to school with Zim and is one of the few characters aware of Zim's true identity. (From Wikipedia).
G.I.R. and Zim are the two most predominate and certainly the most beloved characters from Invader Zim. G.I.R. being completely random and out of control, and Zim being one of the least intelligent characters of the series. The interactions the two have throughout the series is comical, adorable and quite memorable.
According to TFL.org, "A fanlisting is simply an online list of fans of a subject, such as a TV show, actor, or musician, that is created by an individual and open for fans from around the world to join. There are no costs, and the only requirements to join a fanlisting are your name and country."
"Your Intelligence is STOOPID!" (the only approved fanlisting for the relationship between G.I.R. and Zim), was created by Sarah on December 29th of 2009. It is proudly part of TheFanlistings.ORG, Rewind the Radio, and The Fear Network. The fanlisting was named after a line from the season 1 episode "G.I.R. Goes Crazy and Stuff." G.I.R., in reference to Zim said:
"Your methods are stupid; your progress has been stupid; your intelligence is stupid!"
For the site title, the word "stupid" is misspelled "stoopid". The name was chosen because it was one of the most memorable episodes, and certainly fitting for the relationship between the two characters, which is anything less than intelligent.