Peyton Manning made the word 'Omaha' a trending sensation this past weekend. He must have yelled it 600 times during the Broncos playoff victory over the Chargers last Sunday.  It was one biggest items trending on Twitter by the end of the game.

It was still a hot button item a few days later -- so much so that ESPN's football analysts talked about it. Trent Dilfer and the 'NFL Live' crew explained the meaning behind  Manning's mysterious 'Omaha' calls.

Manning's play-calling has become somewhat infamous this season. You may also recall he screamed 'Papa John's' during one game, which the opposing defense later used against him. You can check it out below: