The phrase will only be understood by dirty minded people. A word that starts with p and ends with orn is guessed to be porn as it IS the hottest part of the movie industry however the real word is popcorn! Used as a trick to see if someone is dirty minded.
"Hey frank, what starts with P and ends with ORN and is the hottest part of the movieindustry?"
This phrase is to be used when you are raping someone in a online game and they are trash.
However you do not want to hurt the other persons feelings so you use this.