A pair of breasts that illicit attention mainly for their unusually large size, mostly found on large women however not limited to them. You may see flopdargens hanging off the side of a partically obese woman's stomach and tucked sloppily into her back pockets, like big meaty seatbelts, in order to avoid taking out street signs and knocking over small children on her way down the street.
Dude, check out the fuckin' flopdargens on that pig. I bet she hasn't seen her feet in years! Oh my god, her arms don't even touch her sides they're so floppin' ridiculous. I'd bang that out. ...Hey, do we need milk?