跡を濁す、後を濁す
あとをにごす
atowonigosu
JMdict entry #1856890
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expressions (phrases, clauses, etc.)Godan verb with 'su' ending
to leave a bad impression behind
see: 立つ鳥跡を濁さず・たつとりあとをにごさず
JMdict entry #1856890