People who are in a relationship, but have yet to announce it, are classed as facebook single. They can then enjoy the privileges of giving the appearance of being single (i.e. to flirt with people on a night out) whilst covertly being in a real-world relationship.

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.