happy ending

noun2

1. •
   A conclusion to a story in which all the loose ends of the plot are tied up, and all the main characters are left in a state of contentment or happiness.

   • The heroine was killed, and since then the happy ending has only been preserved in an appendix in the play. — 1827
2. •
   (slang, vulgar) An orgasm, especially one experienced by a male client after a hand job (“stimulation of the penis using the hand”) provided by a masseuse at the end of a massage.