I'm bringing Sexy Back.
Duke Devlin is a character within the Yu-Gi-Oh! Abridged universe. He is based on the canon Duke Devlin.
Duke appeared in episode 22. His voice is based on Snake from "The Simpsons", and almost every time he is speaking onscreen the music of "SexyBack" by Justin Timberlake plays in the background. Yugi says they can be friends if he gets rid of "that annoying theme music" to which Duke replied with "What theme music?" suggesting that he either can't hear the music or that the music has always followed him around so he thinks it's normal. He contradicts this in episode 48, in which he says that he "can barely hear his theme music" and again in a deleted scene where Tristan finds a remote that changes it.
He often talks about how sexy he is and tries to convince people that Dungeon Dice Monsters is not like Duel Monsters, despite the similar rules and exact same monsters. When asked why it's different, he simply responds, "My game uses dice." In the end, everybody tells him that they consider his game more boring than Duel Monsters. However, Pegasus funds Dungeon Dice Monsters, apparently because it would make his card game look exciting by comparison.
Tristan thinks he's a witch, having seen him perform magic tricks, and can be heard constantly shouting "Burn the witch!", a reference to Monty Python and the Holy Grail.
When Duke reappears in episode 36, he saves Tristan and Serenity from a mob of Steves. He throws a dice at one, prompting him to say that it "barely hurt". Tristan still refers to him as a witch at this point, asking him if he brought his broomstick with him while escaping the Steves. Men apparently propose to him all the time, (although Tristian claims that he was kidding). After reappearing Duke became part of Yugi's group of friends something he asked to be right before the start of season 2, even though he didn't fulfill his promise of losing the sexyback music.
Apparently his hand has a habit of touching other people's butts, as in Episode 40. It has been mentioned that Duke is the fourth Jonas brother, likely a joke at his expense due to the many fangirls he has. Duke also seems to break the fourth wall (like everyone else) such as in Episode 41 when he panics at the concept of dying and saying, "I can't believe I'm gonna' die in a show about f*cking card games!"
In Episode 47, he claims that waking up next to a blonde and a brunette (Joey & Tristan) is just another morning for him, as well as as replying to the question "do you want aliens to probe uranus?" with "maybe".
Episode 48 reveals that he has a disease where he dies if he doesn't have half naked girls applied to his body at regular intervals, this is notably shown by his theme music slowing down and losing its beat.