全裸头顶地，恐怕是现实中最羞辱的体罚了吧
这姿势本就高难度，加上被命令脱光的羞耻感
学长看谁撅得不标准，就在后面抓卵蛋或者踢鸡巴，毫无防备之力
This is the most humiliating corporal punishment in reality as far as i know.