A round belly...abrrievation of degree. As a fat belly represents a 180degree angle. Can be used to insult anyone thats overweight!
1) Stop a fat guy in the middle of the road and calmly say
"You've got a deg."
2) When someone overweight gets a bit too happy you can allow them to remember that their fat i.e
FAT GUY- tells funny joke
YOU REMIND THEM-"Your a deg. Dont get happy"