In bankruptcy, there are various exemptions for different types of property such as household goods, auto, home, clothing, etc.  The exemptions are to protect one's property from creditors.The wildcard exemption is a catchall exemption to protect property  where the maximum exemption amounts are not sufficient to protect an item of property from creditors; where the property's value is more than the exemption amount.  For example, if a car is worth five thousand, but the exemption amount for an auto is two thousand, the wildcard exemption can provide an additiional unused amount to fully protect the car from creditors.The trustee is objecting to how the wildcard exemption is being applied in your bankruptcy.