へらへら
Meanings
Adverb
Adverb taking と
Suru verb
1. (laughing) foolishly; (smiling) thoughtlessly (Onomatopoeia)
2. indiscreetly (talking); carelessly (speaking); frivolously; flippantly (Onomatopoeia)
Na-adjective
Adverb
Adverb taking と
Suru verb
3. thin (paper, cloth, etc.); flimsy (Onomatopoeia)
Other readings
Examples1
いつまで
When are you going to stop laughing like an idiot?