1. Fate or destiny caused or originated by a smooch.
2. A term describing how two people became acquainted with each other through fate or destiny, and largely due to their having
locked lips at some
point.
After George McFly succeeded in knocking out Biff Tannen in the Hill Valley High
School parking lot and thus showed
Lorraine Baines that he was a worthy partner after all, the two
teenagers finally hooked up when they shared their first passionate smooch on the dance-floor during the Enchantment Under The Sea party; they later agreed that their meeting was kissmet.