Linda Stotch is Butters' slightly-psychotic mom. After finding out that her husband had been visiting gay bath houses, she drove her car into the river and attempted to kill Butters. Don't worry, Butters survived. Mrs. Stotch can be seen regularly hanging out with the other South Park moms, as well as taking careful time to ground her son for making silly faces and putting balls on his chin.
Season 14: The Tale of Scrotie McBoogerballs
Butters goes on the Today show to promote his amazingly successful book.