also: ぶーっ
Onomatopoeic interjection for a buzzer, car horn, or quiz-show wrong-answer sound. The exact meaning depends on context.
車のクラクションがブーと鳴った。
The car horn went 'beep'.
It buzzed when the answer was wrong.
クイズで間違えたら、ブーという音がした。
When I got the quiz wrong, there was a 'buzz' sound.
客席からブーが飛んだ。
Boos came from the audience.
プー is a softer, higher-pitched toot or puff sound (trumpet, horn, fart, inflating), while ブー is a louder, buzzer-like sound (booing, a klaxon, or a heavier fart) often used to signal disapproval.
honking; oinking; vibrating · grumbling; complaining · car (child's word)
complain; grumble; gripe
Standard katakana spelling for this onomatopoeic interjection.
Emphatic variant with a small tsu, often used for a longer or more forceful sound.
Onomatopoeic word imitating a low buzzing or honking sound.