To express on AIM when something was funny, because just 'haha' isn't that dramatic and can be used as just aknowledging when someone has said something.\n> Bobby31: ...they call it cheese and quackers!\n> Annette85: haha\n> Bobby31: oh come on it was funnier than that\n> Annette85: hahaha\n\n(hahaha 的复数)