A sex position in which a male is pounding a lactating woman's b-hole from behind while simultaneously milking her swollen nipples like a cow. After he finishes in her, he pulls out, only to dump the breast milk back into her gaping b-hole. She then proceeds to let it ooze out while softly moaning, "mooooooo!" This position is exclusive to Derry, NH.
Guy 1: "Did you hear about that incident in Derry, NH involving a bunch of pregnant females?"
Guy 2: "Yeah, I was covered in breast milk after I gave each of them the 'ole Dirty Derry."
Guy 2: "Yeah, I was covered in breast milk after I gave each of them the 'ole Dirty Derry."
by Dirty Derry Boyz January 15, 2014