The definition of have a free hand is an expression used to indicate that you are available and willing to provide some kind of help or aid. (phrase)
- An example of have a free hand is when someone is carrying groceries up the street and asks the neighbor "can you help before I drop the eggs?" In this situation, she could have asked the neighbor if she had a free hand.
- If the neighbor volunteered to help carry groceries, the neighbor might say "I have a free hand, want some help?"