A combination of 'ref' and 'effed up'. The act of getting "geared up" for an assignment, as in purchasing and/or putting on premium referee accessories.
Before you put on your striped shirt you better get reffed up and put on your compression shirt.
In any sport with a referee, when the opposing team is less skilled, but gets help from the refferees to win the game with phantom calls and missed penalties against your team.