A terrible person with no knowledge of history and /or geography. Must not have a sense of humor.
This lady on Twitter was such a McKechnie. She actually thought I was serious.
by #XAnon October 13, 2019
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A term used to describe an insufferable gimp, whom is a conversational abyss, however refuses to realise this.
You're such a disgrace, you're such a Mckechnie.
by JM December 9, 2004
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