flirterEtymologyFrom flirt + -er. Compare Old English fleardere (“one who acts wantonly or with folly”).flirter means one who flirts. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounOne who flirts.“I just ended a relationship with a compulsive flirter, after realizing that no one deserved to be treated as I was.”