It's not recommended to consume any food product, including Betty Crocker whipped frosting, past its expiration date. The expiration date is provided as a guideline by the manufacturer to ensure the quality and safety of the product. Consuming food past its expiration date can be risky, as it may lead to foodborne illnesses or adverse reactions.
In the case of the Betty Crocker whipped frosting with an expiration date of May 3, 2018, it is well past its recommended use-by date. Using or consuming the frosting at this point is not safe, and it's best to discard it.
Always check the expiration dates of food products before purchasing or using them, and make sure to store them properly according to the manufacturer's instructions to maintain their quality and safety. If you're unsure about the safety of a particular food item, it's always better to err on the side of caution and avoid consuming it.