Mr. Bill is the clay figurine star of a parody of children's shows.
Mr. Bill got its start when Walter Williams sent Saturday Night Live a Super-8 reel featuring the character in response to the show's request for home movies during the first season. Mr. Bill's first appearance occurred on the February 28, 1976 episode. Williams became a full-time writer for the show in 1978, writing more than 20 sketches based on Mr. Bill.
Each Mr. Bill episode would start innocently enough but would quickly turn dangerous for Mr. Bill. Along with his dog, Spot, he would suffer various indignities inflicted by "Mr. Hands," a man seen only as a pair of hands (played by Vance DeGeneres).
Sometimes the abuse would ostensibly come from the mean Sluggo, another clay character. (However, Mr. Hands did most of the violence himself, because Sluggo would tell him to, i.e. "Sluggo says to...") The violence would inevitably escalate, generally ending with Mr. Bill being crushed or dismembered while squealing in a high pitched voice, "Ohhhh noooooooooooooo..." (from wikipedia