0 in the sport of rugby, a player who takes part in a scrum (= a group of attacking players from each team who come together with their heads down and arms joined, and push against each other, trying to take control of the ball):
Our front-rowers are playing against the French and Welsh, who are outstanding scrummagers.
He's a magnificent scrummager, a real top-notcher in that department.
Simon is one of the best second-row scrummagers in the Premiership.
Once the Wallaby scrummagers gained the ascendancy, the game took on a different hue.
Maybe he was not the greatest lineout jumper in the world or the best scrummager, but he was an outstanding leader of men.