神经病院首席院长来自神经病院的你
[shén jīng bìng yuàn shŏu xí yuàn zhăng lái zì shén jīng bìng yuàn de nĭ]
In English, this means: 'Chief director of the asylum and you from the asylum.' This is clearly used humorously, where two self-declared 'mental' users find common ground. They probably have similar views on social norms or share quirky personalities, finding solace in being different together.