Stripper

A stripper was a person who would, usually in front of a group, remove their clothes for money.

A stripper named Lucy was intended to pop out of a cake a Rory's stag party, but the Eleventh Doctor took her place. He revealed to those present that she was outside in a bikini. (TV: The Vampires of Venice)

A similar tradition existed for hen nights; for Gwen Cooper's, a male stripper was hired. He ripped off his police uniform to reveal just a pink posing pouch covering his crotch. (TV: Something Borrowed)