膣ちつ外がい射しゃ精せい

noun

extra-vaginal ejaculation

Medical term for ejaculation occurring outside the vagina; often discussed in contexts of contraception or sexual health.

• 膣ちつ外がい射しゃ精せいは避ひ妊にん法ほうとして確かく実じつではない。

  Extra-vaginal ejaculation is not a reliable method of contraception.