我的同桌有煞气
[wŏ de tóng zhuō yŏu shà qì]
Literally translated, it means 'My seatmate (desk-mate) has Sha Qi.' Sha Qi comes from traditional Chinese culture and refers to negative energies or ominous vibes coming off someone, usually attributed to misfortune or ill-luck that can affect others nearby. This user likely wishes to highlight a troublesome companion at school.