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creeping (of an insect, etc.); crawling
restlessly; fidgeting
hesitantly; slowly; sluggishly
to be crumbly (of food)
虫がもぞもぞと動いている。
The bug is crawling slowly.
もぞもぞと布団の中で動いた。
I squirmed under the covers.
何かがもぞもぞと這っている。
Something is creeping along.