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The sexual act of two people taking a football and shoving it between their anuses. Both people then in turn push as hard as they can, trying to penetrate the other with the football. The person who penetrates the other stands up with arms up yelling 'TOUCHDOWN!' as they run away.
John: Do you wanna try pigskinning tonight?

Frank: Nah, last time when I lost I was sore for a week.
by Jesus Crisco August 04, 2014
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