Top Definition
When a baseball team or any other competitive team places an individual athlete inside of a cage or pen during a portion of the game to rally the team to victory. This player is most likely to be a social outcast on the team.
When the Oakland Raiders were losing to the Rams at kickoff, the team decided to use the glenn pen rally by putting JaMarcus Russel in the tunnel to rally the Raiders to a 4th quarter victory.
by bruins4herpes22 May 10, 2010

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