If you dream that a gypsy has stolen your wallet, then this represents that you will face financial crises and severe loss of money. A wallet symbolizes money. So getting your wallet stolen is not a good sign.
Now you need to be much more severe with your money-related matters. Such dreaming serves as an early warning signal that if you think of investing in something, take a deep investigation before investing.
If you were making extra expenses, you need to cut down on all those expenses because you have already received reply warning signals.