heart·break·er (härtbrākər)
n.
► One that causes sorrow, grief, or disappointment: “one young and chaste, the other a dissolute heartbreaker of 48; one prim, the other passionate” (Ellen McGarrahan).
► Sports & Games. A narrow or last-minute defeat.

[TahlilGaran] American Dictionary ▲

heartbreaker
n. One with numerous admirers of the opposite sex; one with whom others fall in love readily.
Tom, who has four girls in love with him at college, has developed the reputation of being a heartbreaker.

[TahlilGaran] English Idioms Dictionary ▲