expression, godan verb (-ku)
Onomatopoeic expression describing the deep, guttural croaking sound of frogs. Often used in children's language or informal descriptions.
雨の後、池でカエルがゲロゲロ鳴いていた。
After the rain, frogs were croaking in the pond.
夜になると田んぼからゲロゲロ鳴く声
At night, you can hear the sound of croaking from the rice paddies.