The Blue Oyster

The Blue Oyster in the Police Academy series. Parodied in that the patrons love to tango in the classic style and dance with practiced skill, but played straight in that all patrons are stereotypical leathermen who'll grab the first guy that walks in as a dance partner. The fact that the guys who walk in are almost always dressed in police uniforms probably helps. Or in at least one case, in the nude.

Example of:
Where Everybody Knows Your Flame