A combination of redbull and vodka usually consumed in bars, nightclubs and other dancing establishments. Causes otherwise normal people to become unduly aggressive, leading to fights over women, fights over cars and fights over who has to buy the next drink. Consumption of meathead tonic has also been known to lead to lost shoes, tossed bricks, high speed car crashes, and inexplicable wounds the next morning.
John drank 10 meathead tonics, now he's kicking the headlamps out of that Mercedes.
by kxmoney July 27, 2006
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Those rich tan, muscular men who hang around the Miami bars, luring in the equally overly sun exposed women of the area. these meatheads can usually be found sporting a rolex and awful haircut.
Christina was itching to escape the wrath of one of the most notorious Miami Meatheads- Joey.
by ChrstinaSailer July 23, 2010
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a reference to, or a calculation of the weight on a barbell or piece of exercise equipment ; common increments are "plates"
Dude #1: Dude, I squated five plates yesterday. That's over 500 pounds.
Dude #2: No man, you're meathead math is off - its only 495.
by Crotch Warrior December 22, 2015
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A person of average to high intelligence who when exposed to a social situation acts with a low intlegence.
I hate it how James acts stupid around his friends, he is such a Social Meathead
by Wiltonburg December 26, 2017
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Science made up by a bunch of meatheads in a trashy, piece of shit gym in a basement.
1: Did you know that if you lick your sweat off your skin it will raise testosterone, there raise your strength?
2: shut the fuck up you meat head.

2: you just made up that meathead science.
by meathead hatah March 16, 2011
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1. One who is exceedingly ignorant and does retarded things.

2. Being called a "Fiddling Meathead" automatically gives you the title of a dimwit with an uneducated mind.

3. Activities that lead to someone being called this are highly amusing and will someday become professional sports.
You are a "Fiddling Meathead" if...

- You pass out during a party hammered and wake up a few hours later Air Fiddling to music..

- You make dangerous videos with shopping carts to one day create a masterpiece..

-You quote Evil Betty by saying things like "Lemur go hmphh hmphh".. or "IM JUST A BIRDY TOOOO"..

-You create a handshake involving Air Fiddling, screaming YEEEEEEEAAAAA!, and acting like someone with turrets (hmmpphhhh!)

- And many more....
by Birdies&Lemurs May 13, 2010
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A male or female ex-militant who cannot seem to separate their former duties from citizen or professional life; endlessly blathering about their experiences overseas and how those somehow give merit to their current level of intelligence; lift and exercise profusely and yet fill their bodies with the same garbage they were fed during their service; and ironically, appear to have the close-mindedness of an ape on bad acid who's never left their own back yard; experienced their whole service in a neatly-made box with two holes poked in it
Bob: "Didn't Rachel serve overseas?"
Jane: "Yeah, still the same girl."
Bob: "Psh, meathead."
by bittersweetman February 3, 2011
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