Oddish and Exeggutor both debuted in the first generation of Pokemon games in 1996. Oddish is a small Grass and Poison type that resembles a walking plant bulb, while Exeggutor is a tall Grass and Psychic type that looks like a palm tree with multiple heads. That tropical design makes Exeggutor a natural fit for conga and island themed jokes, and pairing it with the much smaller Oddish creates a visual gag reused in fan edits, animations and short meme videos shared online.