あはは

あはは
interjection
ha ha ha (laughing)
1. ha ha ha; laughing sound
an onomatopoeic expression representing open, hearty laughter; often used in text to express amusement
あはは、面白(おもしろ)い!
Ha ha ha, that's funny!
あははと(わら)った。
I laughed heartily.
「あはは、冗談(じょうだん)でしょ?」
"Ha ha, you're joking, right?"

LAUGHTER ONOMATOPOEIA:
Japanese has many words to express different types of laughter:

OPEN/HEARTY:

  • あはは - ha ha ha (open laugh)
  • わはは - hearty laugh (often masculine)
  • がはは - loud, boisterous laugh

QUIET/RESTRAINED:

  • うふふ - quiet, often feminine giggle
  • くすくす - suppressed giggle
  • ふふふ - soft chuckle

EMBARRASSED/NERVOUS:

  • えへへ - sheepish laugh
  • あはは (with awkwardness) - nervous laugh
  • へへへ - slightly mischievous

NEGATIVE:

  • にやにや - smirk
  • げらげら - laughing loudly (can be rude)