One who prevents the person or persons they are hanging out with from getting free alcoholic beverages, sometimes in the form of a case of beer, from an interested suitor. The suitor refrains from delivering the beverages because they believe they would be cock blocking the case blocker.

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.