Definitions

1. interjection

an expression of disgust or strong dislike, often used to imitate a sound

“She let out a loud ‘phoo’ as she saw the rotten food in the fridge.”

2. verb

to express strong disgust or dislike, often by imitating a sound

“He phooed loudly at the sight of the spider.”

3. noun

a sound of disgust or strong dislike, often imitated

“The ‘phoo’ from the crowd was a clear sign of their displeasure.”