ブーブー (ぶうぶう, buubuu) Japanese meaning: honking | KotomoraThe car honked its horn loudly.
My smartphone is buzzing.
Usage patterns
〈物〉がブーブー鳴るfor something (a horn, phone, etc.) to honk or buzz
〈事〉にブーブー言うto grumble or complain about something
Many employees grumble that their pay is too low.
ブーブーに乗る(child's word) to ride in a car
The child begged to ride in the car.
ブーブー文句を言うto complain and grumble
He's always grumbling and complaining.