Tediously or persistently repeating the same points; speaking at excessive length in a way that feels nagging or overly detailed.
注意事項をくどくど言うより、簡潔にまとめてほしい。
Rather than repeating the warnings tediously, I'd like them summarized concisely.
母はくどくどと昔の話を繰り返した。
My mother kept going on and on about old stories.
くどくど文句を言うより、解決策を考えよう。
Instead of complaining repeatedly, let's think of a solution.