Ref
Referee
Example
Those refs need to get their heads on straight! That clearly was a foul!

Related Slang
NFL | National Football League |
NBA | National Basketball Association |
NHL | National Hockey League |
Fanboy | A dedicated male fan |
terribad | Terribly bad |
L2P | Learn to play |
Ref is an abbreviation for "referee," which is an official of a sporting event. It is used in a variety of sports leagues such as the NBA, NHL, NFL and FIFA.
Refs are typically looked down upon by most sports fans and often receive death threats for missing calls that happen faster than a blink of the eye. A nickname often used by fans to refer to a ref is "zebra", which comes from the black and white uniforms typically worn by a football and hockey refs.