the combination of dyke and diabetes(the sugars). Slang term commonly used to describe the fat chick at a bar, who could very possible have a physical illness due to obesity, as well as looking like a lesbian.
Joe: Hey Ted, look at that chick over there, i'm bettin on 300 pounds.
Ted: Well 300 dollars says she has Dykeabetes!
Ted: Well 300 dollars says she has Dykeabetes!
by brandon freekin mccandlish June 22, 2008