Celebrated six days before Valentine's Day, February 8th, to ensure maximum ill will. It is a day to release contempt in SPITE of the Hallmark Holiday. DYI hate cards and hard-as-rocks pastries are given to couples, while delicious SPITE treats are spread to the joyous single masses... or to whomever you want, really. If you do not like a certain person, then SPITE them.
Go forth, and be repugnant!
Baking spite brownies, muffins, or cakes for Spite Day is highly encouraged.