The Free Dictionary (http://www.thefreedictionary.com/womaniser): Noun 1. womaniser - a man who likes many women and has short sexual relationships with them philanderer, womanizer Casanova - any man noted for his amorous adventures Don Juan - any successful womanizer (after the legendary profligate Spanish nobleman) debauchee, libertine, rounder - a dissolute person; usually a man who is morally unrestrained Lothario - a successful womanizer; a man who behaves selfishly in his sexual relationships with women masher, skirt chaser, woman chaser, wolf - a man who is aggressive in making amorous advances to women