A come-on is a gesture or remark which someone, especially a woman, makes in order to encourage another person to make sexual advances to them.
例句
The image Sue projected was both a come-on and a challenge to every man in the club that night...那天晚上，苏摆出的样子对夜总会里所有的男人来说既是挑逗又是一种挑衅。He ignores come-ons from the many women who seem to find him attractive.很多女人似乎都觉得他很有魅力，而他对她们的挑逗却视而不见。
英英词典释义
Noun
1. anything that serves as an enticement
2. qualities that attract by seeming to promise some kind of reward