Wiktionary
n. An imaginary police force that ensures that people dress according to fashion.
Wikipedia
Fashion Police is an American television series that premiered on September 10, 2010, on E!. It was originally hosted by Joan Rivers and featured panelists George Kotsiopoulos, Giuliana Rancic, and Kelly Osbourne commenting on celebrity fashions.
The show returned from a 5 month long hiatus on August 31, 2015 with Melissa Rivers as the new co-host with Giuliana Rancic and Brad Goreski both returning.
The show will return for a sixth season on January 11, 2016, covering the 2016 Golden Globes. Margaret Cho will join as the fourth panelist. On January 6, 2016, it was announced that NeNe Leakes will also being joining the panelists, making it the first time that the show has had five permanent panelists. She will debut during the sixth season premiere.
Usage examples of "fashion police".
I'd been worried about finding my brother when I dressed, not about standing inspection by the Fashion Police.
Good thing the fashion police didn't do too many tours of Trenton.
She doesn't obey the fashion police, or any other controlling force.
Shit, if the fashion police gave tickets, Lester thought, this city’.