feather one's own nest

Cultural  

1. To look after one's own interests, especially material ones: “The director was supposed to distribute the money to various charities; instead, he used it to feather his own nest.”

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Example Sentences

He was, one would say, decidedly unselfish, if by selfishness is meant a disposition to feather one's own nest without regard for other people's wants.

From Project Gutenberg