A corsage is a small bouquet of flowers that can be worn on your wrist or pinned to your clothes. It's traditional for your prom date to give you a corsage.
When your date to a fancy party or event presents you with a little bundle of flowers, you can call it a corsage. While corsages can be carried, they usually come with a pin or an elastic wrist band, so they can be worn. Sometimes bridesmaids or the mothers of the bride and groom wear corsages at a wedding. The French word means "bodice," the part of a dress to which a corsage is typically pinned.