When a massouse feels inclined to finish your session w/ oral sex or manual release (usually for an extra twenty dollars)

When getting a rub down by an Asian, you roll over and ask for a happy ending. They then jerk you off with their skilled hands.

When a girl (usually Asian) gives you a full rubdown with the exception of your cock, which is rock hard now, and looks up at you and says, 'You want Happy Ending?'

When using Firefox, you keep one tab open with the sexiest picture/video on the internet...to help you finish the task.

What happens when, in a story or movie, a problem gets resolved.