boob(s) that consist mainly of fat and blubber, no actual boob. so they may be large, like C size, but just sit there and flubber. and you think you may want to stare at them, but then you will realize that wou would NEVER tap that. because it just flubbers over. gross.
Person 1: "Damn, that Alex chick has got some MAJOR tits..."
Person 2: "Don't fall for that shit man. Those are double chin boobs. don't even try."
Person 1: "Thx bro."