Quarterbacks use color and number cadences to communicate plays quickly and easily.

Those cadences can have specific meanings or be just a play on words that helps the team get in sync.

Typically, they use a color and a number. Jim Carrey's 'Blue42' in 'Ace Ventura' is mythical and heard at every school recess.

The practice was invented in 1890, when a QB at the University of Washington used numbers to communicate plays for the first time.

As defenses became more sophisticated, the signals became more complicated to maintain the offensive advantage.

Funny thing is, the most famous yell in history has no color or number, it's the “OHAMA!” with which Peyton Manning drove opposing defenses crazy.

On one occasion, Manning mentioned that “Omaha” was the name of his stuffed giraffe when he was a child. (The image is not of that particular giraffe)

The city of Omaha in Nebraska granted the quarterback the keys to the city and the player received many offers to change the word.

The famous word could mean many, many different things depending on the time of the game or the context of the play.

Aaron Rodgers' “Green 19”, Tom Brady's “Green 10”, Brett Favre's “Blue 58” or Philip Rivers' “180” are other famous sequences.

Other quarterbacks have used sequences without color or number, such as Dak Prescott and his “Here we ego!” or Matthew Stafford and his “Turbo-set.”