If someone has a finger in every pie, they are involved in many different activities. He has a finger in every pie and is never short of ideas for making the next buck. Note: This expression is very variable. For example, you can say that someone has a finger in a lot of pies or has a finger in many pies or you can use verbs such as keep or stick instead of have. He was an economist called Clarkson who had a finger in a good many pies. Many of them keep fingers in as many pies as possible to spread the risk and distract the taxman. Note: If someone has a finger in the pie, they are involved in the activity you are talking about. Both banks had a finger in the pie. Note: These expressions often show that you disapprove of someone being involved in something. Note: The most likely explanation for this expression is that it refers to someone who is involved in making a pie.