けろけろ Meanings Adverb completely; entirely See also: けろり. nonchalantly; as if nothing happened See also: けろり. Example sentences 家の近くに田んぼがあるからさ、この時期になると一晩中カエルのケロケロ鳴く声が、よく聞こえてくるんだよ。Since there are rice paddies near my house, I often hear frogs croaking all night long this time of year. Word lists Onomatopoeia Jinuma: Japanese Dictionary · Word lists