A startling new sexual position that began sweeping the nation in early November, 2011. The sexual position is fully achieved by lining up 5-7 women, actively positioning the heads in a semi-circular formation around the crotch area, and then simultaneously knocking them all out with a swing of the dick.
'Man, I was at this crazy sorority party last night... but there were sooooo many wasted chicks, and the cops were coming.. so I just Cain Train'd 'em and left quick.'
'If you havin' girl problems, I feel bad for you son... I got 99 problems and THE CAIN TRAIN IS ROLLING!!!'