fair sex . fair sex {n. }, {informal} Women in general; the female sex. "Better not use four-letter words in front of a member of the fair sex," Joe said. Categories: add yours sex {informal} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 » In RussianTo section: F Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss