An action used commonly in the Halo video game series mainly during online multiplayer player play. Celebratory Crouching is normally seen as several pelvic thrusts/crouching motions into a recently killed halo player to humiliate ones death or to celebrate an unbelievable kill. While many find the action insulting during the game as it is oftenly confused with T-Bagging however it is perfectly acceptable to celebratory crouch on ones face or body in the game.

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.