boo
exclamation
[ buː ]
• said suddenly to surprise someone who is unaware of one's presence.
• "‘Boo!’ she cried, jumping up to frighten him"
• said to show disapproval or contempt.
• "‘There's only one bar.’ ‘Boo!’"
boo
noun
• an utterance of ‘boo’ to show disapproval of a speaker or performer.
• "the audience greeted this comment with boos and hisses"
boo
verb
• say ‘boo’ to show disapproval of a speaker or performer.
• "they booed and hissed when he stepped on stage"
Origin:
mid 17th century (in the phrase say boo to a goose ): imitative.
boo
noun
• a person's boyfriend or girlfriend.
Origin:
1980s: origin uncertain; probably an alteration of French beau ‘boyfriend, male admirer’.
