ぐでんぐでんalso: ぐでぐでぐでんぐでんMeanings1na-adjectivedead drunk; completely wastedDescribes a state of being extremely drunk, often to the point of being unable to function properly. Colloquial and emphatic.昨さく夜やはぐでんぐでんに酔よっ払ぱらってしまった。