(亦作poo) informal <非正式>
1
- used to express disgust at an unpleasant smell呸（用以表示对难闻气味的讨厌）。
1.1
- used to express impatience or contempt呸（用以表示不耐烦或蔑视）：
Oh pooh! Don't be such a spoilsport.
哦, 呸！别那样扫兴好不好。
词源
natural exclamation: first recorded in English in the late 16th cent.