money shot

Noun

• The shot or scene of a film that cost the most to produce, most commonly an action sequence.
• The moment in a pornographic film where the male subject of the scene in question ejaculates; so named because it is often considered the most important part of the film, and often an actor who is unable to provide the shot goes unpaid.
• The release of semen on the partner's body, especially on the face or in the eye.