Refs' decisions refer to the decisions made by referees in sports. A referee is an official who is responsible for enforcing the rules of the game and making sure that the players abide by them. The term 'CALLS' refers to the decisions made by the referee, such as calling a foul or awarding a penalty. The term 'TKOS' refers to technical knockouts, which are when a referee stops a fight due to a fighter being unable to continue.