Top Definition
a word that you can use in place of any other word you wish. It can be a noun, verb, adverb etc. Its basically just a funny and catchy word to say. It's synonyms are "macadoo" and "nagger". The origins of this word can be found in Cumberland, Rhode Island. You may hear this word if hanging out with players of the Mount Saint Charles basketball team or from a certain group in the town of Cumberland.
Chris: That guy is such a mcgavin!

Josh: Hello Mr. Mcgavin! John: Why hello Mr. Macadoo!

Jim: Smelly mcgavins in my nostrils! I just got killed again in COD.
by Mr Macadoo March 14, 2010
2 Words related to Mcgavin

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