To try to be clever but end up doing something foolish; to outsmart oneself; to defeat one's own purpose.
他本想通过走捷径来节省时间，结果因为操作失误，反而弄巧反拙，浪费了更多的时间。
He intended to save time by taking a shortcut, but due to an operational error, he ended up outsmarting himself and wasting even more time.
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