National Kiss Day Share definition Flag Where on this day at the bus stop or lunch time(any time you with your baby)kiss them and hug them. Baby: Hey it's National Kiss DayGirlfriend: Yeah we should make out National Kiss Day by Keep_It_Mellow_bissshh May 25, 2018 0 0 Get merch Get the National Kiss Day mug. Buy Now — $32.95 See more merch