杀不死的石家庄人 (shā bù sǐ de shí jiā zhuāng rén) - A mondegreen (misheard lyrics) of the song "K.K. Idol" from Animal Crossing. Because some animals have ridiculous voices and love to sing, players were temporarily brainwashed. The misheard lyrics sound like "杀不死的石家庄人" (The unkillable people of Shijiazhuang).