Aqua Teen Hunger Force/WMG

Carl and the other characters are in hell.
Do I really need to explain this one?

ATHF is Instrumentality gone horribly, horribly wrong
Yes, it's another Neon Genesis Evangelion theory!
 * Shinji is Frylock, Gendo is Master Shake, Meatwad...doesn't have a brain because Shinji forgot about it. And Carl is just a not-so-innocent, constantly victimized bystander.
 * Oh, and the Cybernetic Ghost of Christmas Past is clearly an Angel.
 * Carl is Toji and Meatwad is Kensuke, what else?
 * The Mooninites? Rei and Asuka. Your choice which is which.
 * How is it not obvious to the previous poster that Rei is Ignignokt and Asuka is Err?
 * Also, does this mean the Plutonians are Touji and Kensuke (Emory and Oglethorpe, respectively)?
 * And where's Misato in all this?
 * She and Ritsuko are the sirens holding John Kruk (Kaji) hostage.
 * ...And Dr. Weird is Keel Lorenz. It all fits!

Jesus Ezekiel Jesus is the actual Prophet Ezekiel
Frylock states that JEJ's age is over 4000 years old. Since Meatwad has repeatedly demonstrated greatly advanced intelligence, it may be that he recognized him and gave him his proper name. Possibly from his experience as a Time Lord.

All the characters are figments of Carl's imagination
The man is clearly a mentally unstable unemployed shut-in, and the aqua teens are... 'giant talking food.
 * This would explain why the cops stop answering his calls.
 * And how all the characters can die and come back again with no other explanation.
 * Big hole there. Frylock moves out in one episode and is discriminated against by a completely different person because he's a flying box of french fries.
 * That guy is a figment of Carl's imagination. Just because he wasn't in that scenario, doesn't mean he couldn't dream it up.
 * He would believe (correctly) that everyone else other than him would consider them freaks.
 * The Live Action episode states the the characters are based off of the "writer's" actual life. His (human) landlord is Frylock, he's Shake, an exercise ball is Meatwad, Carl is a friend, and Dr. Wierd owns a fun center.

== Any and all speculation (including this) about the series, its plot, its characters and so forth are completely meaningless because it's the pinnacle of dadaist absurdism...as in 'just a bunch of random tasteless jokes'. ==
 * Seriously.

Meatwad is not as dumb and gullible as he acts.
He's only pretending to be stupid to see if Frylock and Shake like him no matter what. Obviously its not the case: Shake treats him like crap and Frylock is annoyed by him. That's why he has hidden psychopathic tendencies, as shown in the episode "T-Shirt of the Living Dead" for example.

The series finale will be titled "The New Beginning" or something of that caliber.
Because almost all the season finales were titled as if it were the Grand Finale.

It's all in the head of an autistic boy playing with his food.
I know, it's been done.