Nest | Online English Lessons

To foul one’s nest is to do or say something that disadvantages you and ruins or damages your own interests in some way. Birds are usually very careful to keep their nests clean and not to poop in them: this idiom compares a bird soiling its nest with the actions of a person, or people. The expression to foul one’s nest (or foul one’s own nest) comes from the … [Read more…]