1 definition by Steevoh

Top Definition
The margin of opportunity that exists for a man to be able to have sex with a woman within a given scenario.
Kyle: "Dude, Carly has been hittin’ on me all night. Someone said that her boyfriend will be showing up later, though."

Steve: "You better go hit that while the bone window is still open."
by Steevoh June 03, 2009

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