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A delicacy available at your local McD's, consisting of poached egg, slice of American cheese food, and your choice of sausage, ham, or bacon... commonly mispronounced in rural, southern areas.
Terrence and Luwan woke up starvin' and hopped in their Caprice to head on down to the local McDonald's...

"Yo, I want me a #1 Egg McMurphin with XTRA CHEESE, dawg! And a large Sprite!" "Fo reals, dawg. I want me TWO Egg McMurphins!"
by damnabledame May 08, 2007