Football 101 M-P

Man In Motion: A player, normally a receiver, who turns and runs parallel to and just behind the line of scrimmage, as the signals are being called, then breaks down field just as the ball is snapped.
Man-to-Man Defense: A defensive system in which each member of a team on defense guards a particular member of the offensive team. Also called player-to-player defense.
Offense: A teams or member of a team whose chief responsibility it is to attack and score points.
Offensive Backfield: The players who line up behind the linemen and include the quarterback and the running backs.
Offensive Holding: Illegal use of the hands when blocking a defensive player. The penalty is 15 yards.
Official: A person who supervises the play of a game or contest and administers the rules; a referee, an umpire.
Offside: For a player to be over the line of scrimmage before the ball is put in play. Onside: Being on or behind the line of scrimmage.
Onside Kick: A short kickoff by which the offensive team hopes to get possession of the ball. If the ball travels the legal minimum of 10 yards, the kicking team can legally recover it.
Option Play: An offensive play in which the ball earner has the choice of running with the ball or passing it.
Outside: Toward the sideline.
Overtime: An extension of playing time beyond the established limit to decide the winner of a contest when the score is tied. In professional football, an overtime period is 15 minutes long, but the winner can be declared if the team scores before the 10 minutes is over.
Passing Game: That part of a team's offensive planning that involves throwing and receiving forward passes.
Pass Pattern: The specific route run by a pass receiver in moving down field to catch a pass.
Pass Rush: The effort on the part of the defensive linemen to deck the quarterback or otherwise interfere with his effort to pass the ball.
Penalty: The punishment imposed upon an individual or team for breaking a rule. In football, a team is penalized by losing yardage.
Pigskin: A football.
Pilling on: The action of one or more defensive players who jump on the ball carrier after he has been tackled. Piling on is illegal; the penalty is 15 yards.
Play-Action Pass: A pass play in which the quarterback first fakes a handoff to a running back.
Pocket: A protected area formed by members of the offensive line several yards behind the line of scrimmage within which the quarterback sets up to pass.
Point After Touchdown (PAT): The single point added to a team's score by making a successful place kick over the crossbar. A team must first score a touchdown to be given the opportunity to try for the point. Also called conversion, extra point.
Post Route: A receiver runs 10-15 yards down field then breaks toward the middle at a 45% degree angle. Post refers to the general direction of the goal post.
Primary Receiver: The player who is designated to receive the ball by the quarterback in the huddle.
Punt: A kick in which the ball is dropped from the hands and kicked with the instep before it reaches the ground. Punts usually occur when it's fourth down for a team that does not want to risk losing possession by trying for a first down, but is too far away from the opponents goal line to attempt a field goal.
Punter: A player who specializes in punting.
Punt Return: The runback of a punted ball.