Sally Bobolly is a character who appears in Loose Ends (chapter)[1].
Sally is the mother of Molly Bobolly and works as a telemarketer. She adopts Bun-bun as a pet for Molly after he briefly loses his memories following an explosion in Santa Claus's workshop. When Bun-bun regains his memory, he ties up Sally and Molly and leaves them suspended over a pool of piranha.
An alternate version of Sally Bobolly exists in the Dimension of Rain. See Sally Bobolly (DoR).