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 15, 2010
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A man who once decided to loot up while his brothers were at war
Nick maybe if you weren’t a looter mcgavin we could have won that game
by Chris p nutz May 2, 2019
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A douche who tends to present their douchery to an inactive audience at unorganized sporting events or sports-related video game sessions. One who acts like an asshole during recreational activities to compensate for their inability to do anything well. Also, more simply, that guy who thinks he could fuck your girlfriend because he is better at golf than you.

On the spectrum of relative douchery, a Doucher McGavin falls just between a large rubber dildo used for vaginal irrigation and Kanye West.
Announcer: Now stepping up to the tee, Doucher McGavin!
Person 1: Do we have to listen to his bullshit again?
Person 2: I hope he dies, because I want to be able to come here again without having him sodomize my soul with stories of how great he was in high school.
Kanye West: Yo Doucher, imma let you finish--but back in the day I had one of the best jump shots of all time!
by LTrain5287 November 18, 2009
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A way to congradulate a friend for doing something cool or awesome by using both hands in the "finger gun" motion.
Look Tom just shot James the shooter mcgavin for banging that virgin.
by Steverrrrrrrrrr June 17, 2006
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A Hooter McGavin is when a male is preforming vaginal/anal sex on a female and befor climaxing pulls out his penis and points it toward the breats of the femal, ejaculates on the females breats while hand motioning a gun shoot simular to shooter mcgavin from the move happy gilmore. Also male can , at the time of ejaculation can yell "hoot hoot".
A Hooter McGavin is when a male is preforming vaginal/anal sex on a female and befor climaxing pulls out his penis and points it toward the breats of the femal, ejaculates on the females breats while hand motioning a gun shoot simular to shooter mcgavin from the move happy gilmore. Also male can , at the time of ejaculation can yell "hoot hoot".
by HotterMcGavin Extra Hitter #00 November 4, 2009
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A penis that is curved upward like a banana
also known as Peyronie's disease
GUY: suck my penis please
GIRL: eww no you have a Shooter Mcgavin
by kelby obrien September 4, 2006
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1. A person who tends to shoot the shit often. They are usually known for embelishing stories or creating complete fabrications.

2. A hot roller in the casino dice game craps.
1. "Did you hear Ryan went bungee jumping naked?"
"Yeah, be careful with Ryan's stories. He's a Shooter McGavin."

2. "Step aside and let Shooter McGavin pop his collar and roll some 7s!"
by Erle Kirby October 26, 2006
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