弁べん当とうを使つかう

expression, godan verb (-u)

eat a boxed lunch

A set phrase meaning to eat a packed meal, typically a bento. Often implies eating it outside the home, such as at work, school, or during a trip.

• 昼ひる休やすみに公こう園えんで弁べん当とうを使つかう。

  I eat my boxed lunch in the park during lunch break.

• 新しん幹かん線せんの中なかで弁べん当とうを使つかった。

  I ate a boxed lunch on the Shinkansen.