いひひFreq.FrequencyTop 100,000Meanings1interjectionhee-hee; tee-heeonomatopoeic or mimetic wordOnomatopoeic interjection representing a sly, mischievous, or slightly creepy giggle.彼かれは「いひひ」と笑わらいながら、いたずらを考かんがえているようだった。He chuckled 'hee-hee' as if he was thinking up some mischief.