ぽかん
pokan

To-Adverb

1. vacantly; blankly; absentmindedly

Onomatopoeia
その くちをぽかんと けて わたくし つめた。
sono kowa kuchio pokanto akete watashio mitsumeta
That child stared at me, his mouth agape.
To-Adverb

2. openmouthed; with one's mouth wide-open; gaping; flabbergasted

Onomatopoeia
To-Adverb

3. with a whack; with a thump

Onomatopoeia
Other forms: