Elvira: Mistress of the Dark (1988)

Late night TV host Elvira (Cassandra Peterson) quits her job and travels to a sexually-repressed town in Massachusetts that's like a late 1960s sitcom. Whist there the leggy host offends 90% of the locals with her outspoken views and her outstanding cleavage. But while the anti-fun brigade (i.e. the town council) is fuming, the youth of the backwards town are on her side.
It's a cult film with tame innuendo (mostly tit-jokes) and intentionally bad wisecracks that'll either make sense to your inner teenager or have you scratching yourself while periodically checking your watch.

2½ big openings out of 5