BOO definition in American English | Collins English Dictionary
https://www.collinsdictionary.com/us/dictionary/english/boo
Web2 days ago · boo in British English. (buː ) exclamation. 1. an exclamation uttered to startle or surprise someone, esp a child. 2. a shout uttered to express disgust, dissatisfaction, or contempt, esp at a theatrical production, political meeting, etc. 3. See would not say boo to a …
DA: 34 PA: 85 MOZ Rank: 27