我有蛇精病你别搭理我
[wŏ yŏu shé jīng bìng nĭ bié dā lĭ wŏ]
The phrase playfully says “I have a mental illness (literally snake spirit disease), don't talk to me.” This could imply that the person is behaving irrationally but it's also often used humorously or sarcastically by users referring positively to themselves or a situation involving strange behavior.