From urbandictionary.com
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sport fucking
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The activity of having sex for the aerobic benefit. Also, athletic sex.
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To keep a score card of the act of "love", what a playa does. It's the game that you hate and not the playa
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I was sport fucking your sister when I threw my back out.
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Last weekend I was sport fucking and I tapped your moms, your sister, your girl friend and her sister.
Personally I am getting too old for that shit. :)


Better ask NukeyBoyNukem about that one.