interjection
ahem; cough-cough; throat-clearing noise
Onomatopoeic interjection used to clear the throat, signal a pause, or express mild embarrassment or disagreement without words. Often used in manga and casual online writing.
ゲフンゲフン、ちょっと話を戻しますが…
Ahem, let me get back to the point...
「それってどうなの?」「ゲフンゲフン…まあ、そういうこともあるよね」
"Is that really okay?" "Cough-cough... well, that happens sometimes."