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feather (one's) (own) nest
1. To furnish and beautify one's residence. Now that the apartment is officially mine, I can't wait to feather my nest!
2. To use one's influence for personal gain. I'm sure he feathered his own nest with the money he allegedly raised for charity.
feather one's (own) nest
1. Fig. to decorate and furnish one's home in style and comfort. (Alludes to birds lining their nests with feathers to make them warm and comfortable.) With the new family room and expanded kitchen, they seem to have feathered their nest quite comfortably.
2. Fig. to use power and prestige to provide for oneself selfishly. (Said especially of politicians who use their offices to make money for themselves.) The mayor seemed to be helping people, but she was really feathering her own nest. The building contractor used a lot of public money to feather his nest.
feather (one's) nest
To grow wealthy by taking advantage of one's position or by making use of property or funds left in one's trust.