Context is a little convoluted, but basically there was an episode where Sandy and Patrick were trying to get Spongebob out of the house by having Patrick dress as a gorilla and pretend to beat up Sandy in the hopes that Spongebob would come to her rescue. When Spongebob came out, they noticed Patrick was there in addition to the gorilla, and they said they thought he was in the gorilla suit. Patrick then pulled down the zipper on the suit and told them that he was in fact in the suit, and believed he was doing a fairly good job of it. The other Patrick then pulled down the zipper on his suit revealing himself to be a gorilla, who proceeded to beat everyone up before fleeing the scene on a zebra when questioned on why a gorilla was at the bottom of the sea in the first place