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Celebrating beyond to the point of "unsportsman-like" conduct.

Introduced by the NFL, and is considered a bullshit penalty by all Football fans.
Ref: After the interception, excessive celebration, number 93 on the intercepting team. 15-yard penalty will be assessed at the turnover spot.

Crowd: Boo! Booooooo!
by Bill-Bo-Bob-Jim-Joe December 18, 2011
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