The fear of high speeds. Roller Coasters, Bungjee jumping, etc.

Not to be confused with Tacophobia, which is something I made up.

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.