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1.
A phrase used when reluctantly or semi-reluctantly buying donuts from Dunkin' Donuts.

Can also be used to generally refer to Dunkin' Donuts.
"Now that my wallet's empty I hope you're happy, here's your motherdunkin' donuts!"

"Man I don't feel like motherdunkin' donuts today, but whatever."
by your real name... Ha I used it October 21, 2011