to celebrate the new year. given between december 31st at 11:59:55 and january 1st at 12:00:36. the kiss is meant to represent the end of the year that was and the start of a new year and a "new you."
When the ball dropped, i got my new years kiss.
Barry: Who will be your new years kiss?
Kimmy: I'm not sure, I was thinking it would be you.