This is from Guinness World Records: "Elbow Licking. Contrary to popular urban legend, it is quite possible to lick your own elbow. Guinness World Records receives about five claims a day for this...
Some people can some people can't. Some are flexible enough to reach, some dislocate their shoulder or are double jointed. I can lick my elbow though I don't think I am double jointed I can just...