A person that retains their shit until it is the size of a duck before shitting. Often requires a plumbing service to clear the sewer line. During the incubation period the person carrying said turd farts often sound like the Aflac Duck.

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.