1. When a man is so well endowed that when you see his penis your first response is wowzers.
2.When something occurs that is either shocking, exciting, not exciting, surprising regarding ones genital area.

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.