Top Definition
In baseball, the act of a pitcher (usually age 18 and up) throwing his fastball from 80-84mph consistently. This is no knock on those who throw eighty-poo, just a funy ass way to say how fast they actually throw
Man, I thought that freeman kid was supposed to throw hard...I'd say he topped out at eighty-poo last game.
by 42eerfs February 07, 2008

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