Kind of garbled info there, but I'm almost sure that your mystery movie is "Wacko." Here is the IMDB Page:
http://www.imdb.com/title/tt0083310/The film is an awful parody of horror films with a pumpkin-masked killer that murders people with a lawnmower. Andrew Dice Clay stars as a jerk in a superman costume (the film takes place on Halloween), Joe Don Baker is a cop, and George Kennedy is a gross old man that likes to see his "teenage" daughter naked.
Here is a trailer for the film I found on Youtube:
And here's a longer clip from the film.... ugh.....