我同桌的同桌是精神病患者
[wŏ tóng zhuō de tóng zhuō shì jīng shén bìng huàn zhĕ]
"My Deskmate's Deskmate Is A Schizophrenic Patient" As a rather unusual and potentially humorous nickname, this phrase gives off a casual and witty vibe. There may have a hidden backstory involving interesting classmates during school days, expressing lighthearted and joking remembrance of youth era.