bra burner

noun Slang: Disparaging.
  1. a contemptuous term used to refer to an ardent or militant feminist or to someone perceived as such.

Usage note

This term dates back to a protest at the 1968 Miss America pageant by a group of feminists who did not actually burn their bras, but instead threw the bras (and other feminine products) into a trash can to draw attention to the emerging women’s liberation movement.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018