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1.
When you are plowing a chick, and your fallic stick is so long, that you basically have to run towards her to penetrate in, and run backwards to retrieve your fallic stick, and repeat, so the plowing is like a marathon.
Dude, I was so long that I had to engage in marathon plowing.
by Richalex May 01, 2006

Words related to marathon plowing

long marathon plowing running sex