power play

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Sports An offensive maneuver in a team game, especially in football, in which a massive concentration of players is applied in a certain area.
2. n. Sports A situation in ice hockey in which one team has a temporary numerical advantage because the other team has one or more players in the penalty box.
3. n. A strategic maneuver, as in politics, diplomacy, or business, based on the use or threatened use of power as a means of coercion.

Wiktionary

1. n. ice hockey In ice hockey, the situation where a team has a numerical advantage on the ice due to one or more penalties given to the opposing team.
2. n. sports A similar situation in other ball games such as lacrosse, indoor soccer, rugby and cricket.

WordNet 3.0

1. n. a play in which there is a concentration of players in one location on the field of play
2. n. (ice hockey) a play in which one team has a numerical advantage over the other as a result of penalties
3. n. an aggressive attempt to compel acquiescence by the concentration or manipulation of power