Despite the common misconception, POT Day is not a celebration of all things Pot, Marijuana, or Cannabis related. The"POT" in POT Day is actually an acronym standing for "Potentially Offensive T-Shirt" Day. Potentially Offensive T-Shirts qualifying for POT Day include the following.
Stoner 1: Hey man . . . What are you wearing for POT Day?
Stoner 2: I'm actually wearing a shirt with a picture of a angry snowman, rolling a joint. The Shirt is made out of Hemp.