ruck 1 
(rŭk)
(rŭk)n.
1.
a. A multitude; a throng.
b. The undistinguished crowd or ordinary run of persons or things.
2. People who are followers, not leaders.
3. Sports
a. A play in Rugby in which a mass of players gathers around a ball dropped by a tackled ball carrier, with each player attempting to gain possession of the ball by kicking it to a teammate.
b. The mass of players during such a play. Also called loose scrum.
[Middle English ruke, heap, probably of Scandinavian origin.]