also: おっほん
interjection
ahem; harrumph
Onomatopoeic interjection representing a deliberate throat-clearing sound, often used to draw attention, express disapproval, or feign importance.
おほん、と咳払いをしてから話し始めた。
He cleared his throat with an "ahem" and then began to speak.
「おっほん!」と彼は大げさに言って、注目を集めた。
"Harrumph!" he said exaggeratedly, drawing attention to himself.