Annoying Orange: The Sibling Challenge!

The Sibling Challenge! is an episode from Season 12 in the series.

Plot
The episode starts with Orange greeting the viewer on a stage, he says that he's hosting the "Sibling Challenge" where one of Orange's friends (Midget Apple) invites one of their siblings (Corey) ask questions about each other, and the one who gets it wrong will get knifed. Knife appears and asks if what Orange said was his queue, Orange says no, but says he'll get another "Stab at it". Midget Apple is the contestant, and Orange is suprised that he has a sibling. Midget Apple says it's his half sibling. Corey is seen riding a motorcycle, he says that the curtain entrance was too boring, so he's "motorcycle base jumping in". He lands, but his motorcycle explodes. Orange and Midget Apple are amazed, Corey jokingly says "That's gonna leave a mark!" Orange, terrified, notifies Corey that he lost his back half. Corey then says that he was joking and he lost his back half years a go in an accident, and then he talks about tough things he has done. Orange asks Midget Apple what is Corey's favorite color, he says Red, and Corey agrees, he says he lieks the color Red because he's Red. Orange is confused because he is clearly Yellow, Midget Apple tells Orange that Corey lost the part of his brain that does color. Orange says "Oh, but hasn't anyone told him he's Yellow?" out loud, which angers Corey. He tells Orange to tell him what to do, and Orange dares Corey to calm down, Corey agrees and calms down, but he still disagrees that he's actually Yellow and not Red. Orange asks Corey what's Midget Apple's favorite color, Corey knows it's purple, but he answers blue instead, Orange is confused on why he answered wrong on purpose, Corey says it's because he's not Yellow (nickname for cowards) and he's not afraid of the Knife. The Knife appears and tries to stab Corey in half, but because Corey has no half, he survives. Knife exclaims by saying it's not fun and how he can't beat a half-sized apple, Midget Apple complains, but Knife says it wasn't him, he can't think of a fraction small enough for Midget Apple. Corey says that he also doesn't know a fraction that small, because he can't do math because of his accident. Orange says they both won, and Corey says that he got Midget Apple's back, and if he had a back of his own, he'd know that Midget Apple would have his back too. Orange jokes about Corey's lost back half, but Corey says he won't be laughing soon, becaus he'll be getting his back half back in an operation. Orange is suprised, and then makes another joke. Corey quietly asks Midget Apple if he lost his ability to understand humor, or Orange is just really unfunny. Midget Apple says even if he lost the other part of his brain, he'd still have more brains than Orange. Orange hears them and agrees, but he says that he can fart better than Corey. Midget Apple and Corey are disgusted, and the video ends.

Fruity Question of the Day
How do you think Corey lost his butt?