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1.
A term used to describe an individual who is ridiculously over-zealous in any of his or her pursuits, often in a comedic and destructive way. These individuals are easy to point out in a crowd and are noticeably more agitated, sweaty, and loud than a normal person. The term evolved from high school football where 3rd string “bag team” players would injure starting running backs by being overly aggressive during Friday half speed practices.
1.
Friend #1: How'd John do with that girl?

Friend #2: Not so good. He scared her away with his Bag Team All-American technique

2.
Person #1: Torn ACL?

Person #2: Yep. Playing football in the park with Bag Team All-American Nate.
by Youthful Wisdom August 17, 2005