Bubba J is a beer-drinking redneck that Dunham describes
in Arguing with Myself and A Very Special Christmas Special as "white trash trailer park", and whom Dunham uses for humor centered on such stereotypes. To this end, he frequently does jokes involving Bubba J's love of drinking beer and NASCAR, and his low intelligence. Touching upon such stereotypes, Bubba mentions in Arguing with Myself that he met his wife at a family reunion, and remembers seeing her with a corn dog in one hand, a beer in another, and leaning against a ferris wheel, "making it tilt". He also said they had their wedding reception at Wal-Mart, where they were greeted by Walter.

Bubba J, along with Walter, Peanut, Achmed, and José, are Dunham's most appearing puppets. He also made a cameo in Controlled Chaos as a security guard and accidentally blew up the Achmedmobile.