Top Definition
1.) Pertains to the penetration of a female's vagina and then the anus by an erect penis on an alternating basis. Normally, it starts with first vaginal penetration, then anal, then vaginal again, and so forth. The duration can vary in length of either orafice, although it is standard to only apply this term to short durations for the same. (about three to ten seconds of actual penetration of either orafice before withdrawal of the penis for the intent of penetrating the adjacent orafice). * Warning: Should only be attempted with either a condom, regular physical check ups, and/or, with a singular partner relationship three to five years in progress.
Sexual Intent: "I wanna do a 'subway transfer' on that chick!"

Hemorrhoids: "I wouldn't have had such a huge 'rhoid if my husband didn't pull a 'subway transfer' on my ass all the time!"

Harmful Notion: "Man! That bitch is going pay for her stuff with a 'subway transfer' by me!"
by Mike in Aurora, Colorado March 13, 2008

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