Kanji, “ぷんすこ”

Romanji, “Punsuko”

Kanji, “「ぷんすこ」は怒っているときの擬音ですが軽い音でギャグ寄りの擬音と言えるでしょう。”

TRANSLATION: “Punsuko” is an onomatopoeia when angry, but it is a lighter sound and can be said to be more of an onomatopoeia in the gag direction.