James Causey suggests something here that I've heard many people speculate, that this word might be most commonly used on an NFL field between two black players. It would be interesting to see the scenario Causey describes here cost a team. Would an official call it on a black player? Is that the unspoken purpose here, or would it be an unintended consequence.
And I don't want to read too much here, but Causey seems to be comfortable with the words use between two blacks. It's hard for me to believe the NFL is seriously considering this.