ruck

To make a fold in; crease.

To become creased.

A crease or pucker, as in cloth.

A multitude; a throng.

The undistinguished crowd or ordinary run of persons or things.

People who are followers, not leaders.

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.

The mass of players during such a play.