When a topic is presented or being discussed (typically through video) and causes the summoning of a person or people with relation to said topic out of curiosity or interest. It is frequently commented on videos as a joke.

It may be used in different scenarios as well. Its primary purpose is to create a hypothetical awkward and/or funny moment.

The phrase references old time chat rooms with the notice that “____ has entered the chat.”

This joke is parallel to the common phrase: Has left the chat

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.