Idiom: Callout

An outgoing telephone call.

An instance of being summoned to visit a certain place in order to provide assistance; an instance of summoning someone who is on call.

Example: "I had to pay for the callout of the plumber after the pipe burst."

A meeting or rally held in order to find interested participants, e.g. for an activity or sports team.

Example: "So many people attended the basketball callout that the coach decided to form two teams."

An invitation to fight.