Soo you know how the QB always yells like "blue 42" or "green 18" or whatever before the hike. What determines the colors and the numbers? Are they just chosen at random or do they have a meaning? Also, for plays, how they sometimes have weird names like "Chicken little fle flicker", are those names made up by the team or do people actually use those. They`re made up by the coach right?Soo you know how the QB always yells like "blue 42" or "green 18" or whatever before the hike. What determines the colors and the numbers? Are they just chosen at random or do they have a meaning? Also, for plays, how they sometimes have weird names like "Chicken little fle flicker", are those names made up by the team or do people actually use those. They`re made up by the coach right?

The Colors have specific audibles although the numbers mean nothing. And those are names of actual audibles.