ロストバージン

noun, noun or participle which takes 'suru'

losing one's virginity; defloration

Wasei-eigo term from 'lost virgin'; used colloquially to refer to the act or experience of losing one's virginity. Often used in casual or slang contexts.

wasei-eigo (Japanese-coined English), from lost virgin

• 彼かの女じょは高こう校こうのときにロストバージンしたらしい。

  She apparently lost her virginity in high school.