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1 definition by T-Vo14

 
1.
When 2 bros sit side-by-side facing forward (sometimes in a moving vehicle), and use the arm closest to one another to reach over and give the other a hand-job. As this happens simultaneously, their arms cross each other, forming an "X," hence the term X-Men.
Dave and Josh were totally just caught playing X-Men in the front seat of my dad's car...
by T-Vo14 October 02, 2009