Sidelines

From Free net encyclopedia

The "sidelines" is a term commonly used to define the white/colored lines which mark the outer-boundaries of a gaming field. Football sidelines, for example, mark the edge of the field, and if a player passes through the sidelines, he is considered out of bounds and gameplay stops. The sidelines are also where the coaching staff and players out of play operate during a game.

commonly used to refer to an element that is out of the mainstream, an alternative to what is official.