Description: Opposite Day is an unofficial holiday, commonly observed whenever it is declared, where every action is modified so that meaning is negated. Once Opposite Day is declared, statements mean the opposite of what they usually mean. Usually, a person would say, "After this phrase is over, it will be officially opposite day," and then Opposite Day will be officially started. Opposite Day can also be declared retroactively to indicate that what was just asserted had the opposite meaning of what was originally intended (For example when Kipley[when?] was told she was awesome by her awesome friend on opposite day, she did not realize that it was opposite day and was delighted, only to check her calendar seconds later to find out that it was in fact opposite day, which then lead her to go into a deep depression for the next week, illustrating Kipley's moody and depressing nature) (similar to the practice of crossed fingers to automatically nullify promises). Play has been compared to a children's "philosophy course", and the game has been used as an educational aid and suggested as preparation for "standardized testing".