Artificial intelligent assistant

What is the meaning of どうの? Context: a former swordsman takes his daughter to attend kendo lessons. She doesn't seem happy, so he reminds her that she decided herself to go, at which che replies: > **** What is the meaning of ? I found an example on Kenkyusha dictionary suggesting it can be used in lists: > **** **** . > > She's forever complaining; if it isn't the color, it's the design or something else. Is this the way it was used in my sentence? Thank you for your help!

It's the same as or explained in this question. It replaces a (subjectively) unimportant part of the sentence like "blah blah". In this case, the father has told her a long story about , but she is thinking what he said was unimportant to her.

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