くわっ（クワッ）
突然牙を剥く顔。
A face that suddenly bears fangs.
さっきまで温厚だった人が突然恐ろしい顔になる様子。食ってかかる様子。
The way someone who was mild-mannered a moment ago suddenly becomes frightening. The face of a person who is about to bite you.
活用形 - Conjugation
ぐわっ（グワッ）
突然牙を剥く顔。
A face that suddenly bears fangs.
さっきまで温厚だった人が突然恐ろしい顔になる様子。食ってかかる様子。
The way someone who was mild-mannered a moment ago suddenly becomes frightening. The face of a person who is about to bite you.
活用形 - Conjugation
ぐわっ（グワッ）