反轉豬肚 (faan2 zyun3 zyu1 tou5) — to experience a friend turning into an enemy after a dispute (to turn over the pig's belly) in Cantonese
faanˊ²反zyun˗₃轉zyuˉ¹豬touˏ₅肚简 反转猪肚
Mandarin Pinyin: fan3 zhuan3 zhu1 du3
Meaning of 反轉豬肚
nounto experience a friend turning into an enemy after a dispute (to turn over the pig's belly)
nounlit. flip over a pig's stomach, meaning one looks fine on the outside, but can turn ugly or show the real evil side in an instant