El Chewpoocaca is a character that appeared in the Grojband episode Monster of Rock. He is a green sewer monster who steals children while they're pooping and he eats them.
El Chewpoocaca is a big green slimy furry sewer monster with scales on his head. He has red eyes, thick black eyebrows, sharp white fangs, and gray pointed claws.
- El Chewpoocaca is a parody on the mythical monster, Chupacabra
- Alternatively, his name could also be a reference to "Chewbacca" from Star Wars.