sink to new depths
To lower one's already poor ethical standards by behaving in a manner even more malignant, self-centered, or despicable than before. I knew the company was soulless already, but they've sunk to new depths with this new pension policy. I knew John wasn't the nicest guy around, but he has really sunk to new depths. I mean, honestly, who concocts a scheme to defraud an orphanage?
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