1) A member of the douche bag
family that generally lacks social skills. Spends most nights concocting roofie cocktails and masturbating into their popped collars.
2) A primordial or lesser evolved douche bag
1) My girlfriend's neighbor was a total bone dragon, always hitting on her when I wasn't around. I had to slay him.
2) Look at that bone dragon acting like he's hot shit. He's got his Best Buy shirt collar popped.