The phrase 'get down to brass tacks' implies breaking off preliminaries and proceeding directly to the essential matters.
The idiom 'feather one's nest' means to make a comfortable and secure living place, often for retirement. It can also imply misappropriating funds for personal benefit.
Lock, stock, and barrel is an idiomatic expression originating from the components of a rifle, signifying the entirety of something, often used to describe the complete acquisition or involvement in a business or endeavor.
