把柄 (baa2 beng3) — handle (of a knife, broom, hoe, etc) in Cantonese
baaˊ²把beng˗₃柄Mandarin Pinyin: ba3 bing3
Meaning of 把柄
nounhandle (of a knife, broom, hoe, etc)
nounmistake or fault that can be taken advantage of by others
nounexcuse; grounds (for verbal attack)