囔囔 nāngnang to murmur Definitions Defs Origin Strokes Stroke Words Sentences Sents 嘟嘟囔囔 dūdunāngnang to mumble To mumble or mutter to oneself in an indistinct or continuous way; to grumble.突突囔囔 tūtunāngnang to mutter To mutter or grumble to oneself continuously in a low voice; often used in the context of complaining.