"Special Defects" is an episode from The Lion King's Timon & Pumbaa.
At the start of the episode, It is getting dark and Timon is angry at Pumbaa for not waking him up in the morning. Timon and Pumbaa then comp aim about each other's personalities: Pumbaa's stickiness and Timon's obnoxiousness.
Timon and Pumbaa go to Rafiki to fix their problems with each other. Rafiki takes Timon and Pumbaa to the Grassland. He's going to put a spell on the two and he tells them not to move as he's doing so. As Rafiki puts a spell, a cricket hops on Pumbaa, which causes him and Timon to move.
After the spell, since Timon and Pumbaa moved, Timon is now smelly and Pumbaa is now obnoxious. Rafiki now puts another spell while Timon and Pumbaa are fighting. The spell this time makes Timon and Pumbaa have each other's bodies.
Rafiki takes Timon and Pumbaa to another part of the Grassland to make another spell. Rafiki later makes the spell and while doing so, Timon and Pumbaa make up, saying that they don't really care about each other's personalities, and hug. The spell this time makes Timon's body become headless and Timon's head being on Pumbaa's head.
Pumbaa, with Timon's head on him, and Rafiki chase Timon's body. When the three catch it, Rafiki makes the spell again and Timon and Pumbaa are back to normal and they have learned their lessons.