Overheard: Glazed Cruller Edition

As the Orange Line train was pulling in this evening at the Massachusetts Avenue station, two guys came down the stairs and passed behind me, engrossed in a conversation. Just before I boarded, I heard one say to the other, "Remember that girl you were supposed to sleep with at the Dunkin' Donuts?"

I almost didn't get on the train so I could hear what came next, but the desire to get home won (barely). Is that some sort of secret menu item you hve to know how to ask for? Was he supposed to have sex with the girl at Dunkin' Donuts? Did she work there? Would doughnuts be involved somehow? The mind reels...