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Short for Marching Royal Dukes, a freakin' awesome collegiate marching band from James Madison University.
Did you see the MRDs perform on Saturday?

Yeah, they woke me up when they rehearsed outside of my dorm!
by victoriangirl April 15, 2011
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2
The act of sniping a girl out with your ejaculatent while you leave the room you say "that's the wide world of sports"
I Mr.D'd your mom when you were downstairs.
by raw1296 November 13, 2014
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3
Mandy Rice-Davies, a bit player in the 1963 United Kingdom political scandal, "The Profumo Affair". When told at a hearing that Lord Astor denied even meeting her, famously retorted, "He would, wouldn't he?" In chat, "MRD" is sometimes used to say the truthfulness of someone's statement may be coloured by the stater's self-interest, as in, "he/she/you would (say that), wouldn't he/she/you?"
- "Bill Gates said Internet Explorer is the best browser."
- "MRD"
by Sam Bach May 14, 2007
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6
Mad Rad Dope. When something is just hella bad ass. simple as that.
Friend breaks out his range rover for the summer time. "Damn brah, that range is pretty MRD"
by SaintBroseph March 08, 2012
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7
A teacher that you would think to be a bad teacher but is one of the bois.
Man that teacher is such a Mr. D
by Big Daveed November 09, 2018
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