cứt

Etymology
From ~, from  ~  ~. Cognate with 🇨🇬 Bi, 🇨🇬 kʉc, 🇨🇬.

This is one of three known cases of velar initial in Vietnamese corresponding to zero-initial in other Austroasiatic branches. The other two cases are and the dialectal.

Interjection

 * 1)  Bullshit!; Rubbish!