1 definition by Ducks12

When the university of oregon ducks are on defense and the crowd at Autzen stadium starts yelling "O" and puts their hands in the air forming an O. This amount of noise(mostly from the student section) causes the team on offense to be unable to communicate resulting in an Oregon win.

(Autzen stadium currently holds the record for the loudest stadium with decibel levels reaching up to 127 DB)
(Autzen big screen says: YELL O)
Offensive player: What was the play again?
Quarter back: What?
Offensive player: What?
Quarter back: I cant hear you, the crowd is yelling "O".
Offensive player: What?
by Ducks12 October 16, 2009

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