1) The act of shooting your load into your partners mouth and hitting the back of the throat with a high velocity. Almost as if it was getting blown out the back of their head. Hence the name.
a.k.a. "The Magic Bullet" - Have a girl wear a blindfold while she is giving you head. At the same time, have a friend sneak in behind her and pleasure himself behind her. Both of you let 'em rip at the same time and nail the skank with goo from both sides of her head. She will always question if there was a second shooter or it was just a magic load.
I think my boyfriend had a friend of his help him JFK me last night. But he insists on a "single bullet theory."
1.) John Fitzgerald Kennedy. 35th president of the United States of America. Considered to be one of the greatest presidents ever due to his work on civil rights. Was the fourth president assassinated (Lincoln, Garfield, McKinley, Kennedy).
When you turn over a shot glass, fill it with tequila, and then snort it. It gets the name JFK because it is a shot to the head like the assasination of President John F Kennedy.