食碗面反碗底 (sik6 wun2 min6 faan2 wun2 dai2) — to stab someone in the back; to describe someone who is ungrateful and betrays those who have helped him/her in Cantonese
sikˍ₆食wunˊ²碗minˍ₆面faanˊ²反wunˊ²碗daiˊ²底Mandarin Pinyin: shi2 wan3 mian4 fan3 wan3 di3
Meaning of 食碗面反碗底
nounto stab someone in the back; to describe someone who is ungrateful and betrays those who have helped him/her