把屁 (baa2 pei3) — to do sth that is pointless in Cantonese
baaˊ²把pei˗₃屁Mandarin Pinyin: ba3 pi4
Meaning of 把屁
nounto do sth that is pointless
noun(slang with a swear word) an expression to say that something is useless; futile; pointless; meaningless