1 definition by Novanilla
To strike the ass of a person on their birthday, giving them the amount of swats as their age(for example, a 16 year old would get 16 whacks to the butt). This practice originated in North America as a way to celebrate someone's birthday. There are several ways to do birthday spankings: over the knee, bent over furniture, under the arm, or everyone lines up with their legs spread apart so the birthday boy/girl can crawl under their legs and as they pass by you, you swat their buttocks. Usually, one or all of the parties involved get sexual ensure out of this
by Novanilla January 26, 2015