校こう舎しゃ裏うら

noun

area behind a school building

Often associated with bullying, smoking, or other hidden activities away from teachers' eyes.

• 校こう舎しゃ裏うらでタバコを吸すっている生せい徒とがいた。

  There were students smoking behind the school building.

• いじめはよく校こう舎しゃ裏うらで行おこなわれていた。

  Bullying often took place behind the school building.