also: わかいツバメ
young lover of an older woman; boy toy
Idiomatic expression referring to a younger man in a romantic or sexual relationship with an older woman. Often carries a slightly playful or gossipy tone.
彼女は若い燕と付き合っているらしい。
She seems to be dating a young lover.
あの女優はまた若いツバメを捕まえたそうだ。
I heard that actress has snagged another boy toy.