輪わっぱ・ワッパ輪っぱ表記・読み:わっぱ・ワッパ1circular bento box名詞word usually written using kana alone2something ring-shaped名詞colloquialword usually written using kana alone3handcuffs名詞as in ワッパをかけるcolloquialword usually written using kana alone札へ残す語をコピー