A mistake made often when one attempts to say 'McChicken,' a type of sandwich from the McDonald's restaurant chain. Tends to result in the confusion of both the consumer and the cashier/drive-thru attendant, as no one really has any idea what's being said.
"Okay, I'll have a Big Mac, large fry, a Coke, a McFlurry, and a Mc.. McChick.. Mc.. Mac.."

"I'm sorry?"

"McChick.. McMacken? I'll have a McMacken."

"I, uh, well.. Say again, please?

"Uh, McMacChicken.. Uh.. -walks away without order-
by Sheamus O'Rly January 10, 2010
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