A Christmas Story is one of my favorite yule time movies (only How the Grinch Stole Christmas could top it). Peter Billingsley starred as Ralphie. All he wanted was a Red Ryder BB gun under his tree. The semi-autobiographical story was written by Jean Shepherd. Jean was also the film's narrator. Peter has turned the book/movie into a theatrical production running now in Seattle complete with a leg lamp kick line.
Nightline talked to Peter Billingsley who gave us some insight into the "stick your tongue on the frozen pole scene". If a bully dares you to to it, pass. In the movie, it was a fake pole with a hole in it so the actor could stick his tongue in it. Looked pretty convincing to me.