"The Whistle Monster" upset a lot of people watching the Saints and Rams game Sunday.

If you watched the NFC Championship game from your couch on Sunday you may have heard a few whistles coming from the crowd and not the refs. At one point the announcers for FOX even noted that whistle sounds were coming from the stands.

Well, the sound we all heard may have been coming from one particular Saints fan, "The Whistle Monster."

Yes, the guy who whistles, using his mouth, the whole game! Some who were tuned into the game said it was distracting and took away from the experience.

Still, some are standing by the claim that whistles were being used by some fans in the dome during the game.

Here's what Twitter had to say about this Saints fan.