嘥口水
saai1 hau2 seoi2sāi kǒu shuǐ
English
- wasting one's effort or words (spoken)
- to waste one's words; literally: to waste saliva
粵語 — Cantonese
- 浪費時間同精神去説服一個人或者解釋一件事
Examples
你咪嘥口水啦，佢咁硬頸點會聽你講吖？
Don't waste your words, he is too stubborn to listen to you.
Sources: cc-canto, rime-cantonese, words.hk