when a worker at a donut shop, usually Krispy Kreme or Dunkin Donuts, cums on the inside of a jelly donut instead of filling it. Sometimes if the employee is either really daring or high, the cum will replace the icing on top of the donut.
Dude, I got fired yesterday for serving one of my cum donuts to a customer.
by Disonad7 October 31, 2007
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A phrase used by people when something unexpected/bad happens, used in the same way as "fish sticks!", "fuck.", "oh shit!" or "Bob Saget!" You can say it to anything that compares to biting into a donut filled with cum instead of jelly. The most effective phrase to use that doesn't include a curse word.
boy: "I'm so happy, i finished my homework and i think i'm going to get to third base tonight!"

friend: "Yeah, that Dickens essay took forever to finish"

boy: "Essay?!? Cum Filled Donuts!!!
by A International Poon Handler February 11, 2009
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