Over-consumption of sugar(carbs) in a short time frame as to trigger the sudden onset of Diabetes.
Man, I banged on some peanut butter ice cream with crumbled Reese's, Reese's pieces, and chunks of peanut butter cookie. That ish was diabetically delicious.
Saying, "Aww dude, that's sweet!" is totally inappropriate and downright douchebaggary when describing something sweeter-than-sweet thus, use diabetical, so that it is clear how sweet and potentially dangerous the subject is...
So sweet it may give you diabetes, the subject's diabolical plan...
Wow, you see how she just unzipped her top so low like that?... That bitch, straight diabetical.
Man, I banged on some peanut butter ice cream with crumbled Reese's, Reese's pieces, and chunks of peanut butter cookie. That ish was diabetically delicious.