Beef Burrito is Rigby's wrestling doll. He makes his debut in The Power, where he was attacked by both Mordecai and Rigby because the former supposedly said something about his mother. Rigby claims that Beef Burrito wants him to "put the hurt on him," causing Rigby to make a hole in their wall. It belongs to Rigby, but usually both Mordecai and Rigby play with it together. The doll can withstand the attacks from Mordecai and Rigby.
The doll is based on a wrestler shown on Mordecai and Rigby's television. Like the wrestler, the doll has long, blonde hair and mustache/goatee, red headband, wristbands, tights and laced shoes/boots, brown and gold championship belt, is caucasian, and has black pupils. He appears to be yelling, because the doll's mouth is open wide.
- Beef Burrito also appeared on the Cartoon Network game Just a Regular Game, where the player has to "put the hurt on him."
- He is a parody of the professional wrestler Hulk Hogan.
- He is a "part" of the Moon Monster, who was created by Rigby. The evidence for this is the hair style, headband and championship belt.
- The doll is as big as Rigby.