burn a hole in (one's) pocket

To be in one's possession and causing one an intense urge to make use of it. Typically used in reference to money, suggesting that the person with the money feels the need to spend it quickly. My allowance is burning a hole in my pocket! I can't wait until school is over so I can go buy some baseball cards! Don't let that bonus burn a hole in your pocket—save it up for something you really want. My Christmas bonus is burning a hole in my pocket, so I think I'm gonna get some new speakers.