I was in attendance at the only showing of 'Dexter's Rude Removal' at the first showing at Comic Con (I have been told it was shown censored at other places but this was the only showing with the gloves off uncensored) and was asked to register here just to post and explain the plot.
CAUTION SALTY LANGUAGE AHOY
The panel for Dexter was with a special guest being Genndy who delighted us with some oncoming specials and such. He then hinted that he also wanted to show us something 'truly special' at the end.
Nearing the end, a girl from CN stood up and announced that everyone under 18 needed to stand up and would be given something special but had to leave. The kids filed out as the adults kind of looked at each other with a big ? over our heads. Genndy kept grinning.
After all the kids were shooed, Genndy looked at the remaining 20-30 of us and said "We made something special as an inhouse project to show only at CN parties and the like...I loved it soo much you guys are gonna get a treat...Dexter's Rude Removal"
The girl then stood in front of us and warned us with bodily harm if she caught any of us taping anything or even remembering hard. She was pretty much imagining it getting out there and torpedoeing CN with lawsuits. "I want you people to know this will NEVER be made public...so count yourself extremely lucky". Finally Genndy shooed her away.
Title screen: Dexter's Rude Removal. Dexter is mooning us and Dee Dee is flipping us the bird. Oh boy!
Plot: Dexter has decided that rudeness is preventing him from becoming the perfect child and has constructed a 'Rude Extractor' to separate his bad mojo. Dee Dee of course shows up at the wrong possible time and wreaks havoc. Dexter manages to tackle her, directly into the Rude Beam...
Dee Dee and Dexter separate from each other, spawning a evil twin of themselves and knocking out their good halves. Both look at their good selves and immediately begin to curse each other, their surroundings and trash the place. ***k this ***k that...you are a ***king idiot...who the ***k you calling a ***king idiot, you ***king idiot?
Mom calls "Dexter...Dee Dee....LUNCH!
"AW ***t...I AM ***kING STARVED!" They tear out of the lab and blunder their way through the house, wrecking stuff and cursing up a blue streak.
Just within earshot of mom, they stop cursing as they drop into their seat, and start shoveling food noisily with belches and farts. Mom pauses and turns asking how their food is. Dexter belches and exclaims
"Aw ***king hell mom, this ***t is ***kin great!"
to which Dee Dee counters
"Shut the ***k up you ***thead...you can't ***king curse in front of ***king Mom!"
and they both begin to literally curse the ***t out of each other. This exchange manages to make Mom faint and they really go at it (Seriously, Dee Dee called Dexter a Skull***king Douchebag one time).
Eventually, Dexter and DeeDee wake up and manage to trap the cursing twins back in the lab and eradicate them (To the scream of ***k OFF, YOU ***kIN NERD from the evil sides). They leave the lab as Dexter declares that 'Lucky we got them in time...ah well no harm done'.
Rounding the corner, they find Mom standing there menancingly with a big bar of soap as she screams "DEXTER AND DEE DEE...GET OVER HERE". The black circle closes over Dexter as he looks at the audience and goes "Oh ***k!"
Needless to say, all of us were in complete hysterics. Both my friend and I were tearing up from laughing so hard. Just hearing Dee Dee's high pitched voice sailor talking makes it proabably the most wanted cartoon to see.
Will it ever make it out there? I dunno, they have really kept it sealed away. In this day and age of Youtube, that says something...
That's it...I will check back to answer any questions. Thanks for reading!