guān nǐ pì shì
(coll.) None of your goddamn business!
Mind your own business!
关
guān
mountain pass
你
nǐ
you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
屁
pì
fart
事
shì
matter
Review