- DaSaGwaLv 78 年前最佳解答
Since you didn't give the situation about the chatting content, so it is NOT that easy to determine what it actually means. However, if you have watched an American animated sitcom: The Simpsons, you might have come across this. It is an annoyed grunt (懊惱咕嚕聲) made by Simpsons. For the background story, you can refer to:
2012-09-07 22:56:49 補充：
In that case, my explanation does match the situation. She is kind of complaining herself for working late. By the way, she must be a fan of The Simpsons. Otherwise, she might use "Aiya, Aiya" instead.
2012-09-07 22:57:53 補充：
In a word "eiei" doesn't really have any meaning in it. It is just imitating the sound when someone complain. It is like "ouch", "sigh", ...參考資料： self + internet search