ゲコゲコげこげこMeanings1adverb, adverb taking the 'to' particlecroaking; ribbit ribbitonomatopoeic or mimetic wordOnomatopoeia for the sound a frog makes. Often used with と.池いけのそばでカエルがゲコゲコと鳴ないている。Frogs are croaking by the pond.