Fanboy and Chum Chum S02 E22 Rattleskunkupine!

The boys find a new pet that's a cross between a rattlesnake, a skunk, and a porcupine. This animal is called the rattleskunkupine, but Fanboy and Chum Chum name it Scooter. They have to hide it from Oz when they learn that it's terrorizing the city.