ぐつぐつ LinksSentence search for ぐつぐつSentence search for グツグツEdit in JMdict Adverb (fukushi), Adverb taking the 'to' particle, Suru verb1. simmering; (boiling) gentlyOnomatopoeic or mimetic wordOther formsグツグツ Discussions Log in to talk about this word.