もぐもぐ

もぐもぐ
adverb, verb (suru)
munching, chewing
1. munching, chewing
The sound or manner of chewing food, especially with the mouth closed.
もぐもぐ()べている。
Munching away at food.
ハムスターがもぐもぐしている。
The hamster is munching away.
2. mumbling
Speaking unclearly, often with food in one's mouth.
(くち)(なか)でもぐもぐ()っている。
He's mumbling something.

もぐもぐ is an onomatopoeia for the sound/manner of chewing, especially with the mouth closed.

USAGE:

  • As adverb: もぐもぐ()べる (to munch)
  • With する: もぐもぐする (to munch away)
  • For mumbling: (くち)(なか)でもぐもぐ()う (to mumble)

NUANCE:

Conveys a cute, gentle impression. Often used for:

  • Children eating
  • Small animals (hamsters, rabbits) eating
  • Eating something soft or chewy

SIMILAR ONOMATOPOEIA:

  • ぱくぱく: eating quickly with big bites
  • むしゃむしゃ: eating heartily, chomping
  • もごもご: mumbling (speaking)

The double repetition (もぐもぐ) emphasizes continuous action.