First of all, Zim is an alien invader from the planet Irk. However, he is seen as a totally incompetent screw-up by his rulers, the Almighty Tallest. In order to satisfy Zim's desires to be a part of Operation Impending Doom II (Zim was the one who ruined Operation Impending Doom I), the Tallest sent him to the farthest, uncharted reaches of space (hoping to never hear from him again).
Athough, like every Irken invader, he receives a robotic sidekick. But NOT a Standard-issue Information Retrieval robot (SIR). Instead, the Tallest give him GIR, who was indeed constructed from garbage (even GIR doesn't know what the "G" stands for).
The adorable green puppy thing you see in the PPG Doujinshi is the disguised form of GIR. Ever since they got to Earth, countless wacky hijinks have ensued because of GIR. Since his head is hollow, he likes to put various random objects in it (cupcakes, beehives, rubber piggies, etc.).
Simply put: GIR is NUCKING FUTS!!!
"You may have won the battle but I'm out of ammunition!" --The Four Postmen
Instead of constantly complaining about 4Kids, why not take action? Why not stop watching their butchered anime programming? You're only providing them with more undeserved ratings! That's what I did... after a while, actually.
I actually tried to give the 4Kids version of One Piece a chance, I REALLY DID! However, as the show progressed, I grew sicker and sicker of all the glaring edits and horrid voices! So, I've decided to avoid watching any 4Kids-related shows, which is a shame because the new Ninja Turtles cartoon is the only 4Kids show worth watching!
Saturday mornings are dead to me... way to go, Al Kahn!