Someone so overweight there is no distinction between neck, chest and stomach and with tits that have gone beyond the capacity of a bra to contain them.
Wow man - look at the size of the DiabeTits on him/her, chest sacks of lard!
How does she tell the difference between her Diabetits and her gut?
When it is so cold that your nipples are consequently sharp to the point where they can prick your finger in order to check your blood sugar.
"Man you're crazy if you go outside without a jacket, you'll for sure get diabetits!"