ぽかん Also written ポカン, ぱかん, パカン Meanings Adverb vacantly; blankly; absentmindedly openmouthed; with one's mouth wide-open; gaping; flabbergasted with a whack; with a thump Example sentences 彼はぽかんとした顔つきでそこに立っていた。He was standing there with a vacant look. Word lists Onomatopoeia Jinuma: Japanese Dictionary · Word lists