The muscles- or more likely the lack thereof- found in the male abdominal area. This phrase is a tailor-made justification for excessive amber nectar consumption, and places the onus on drinking a six-pack, rather than having one.
'Been to the gym lately?'
'Nah, but I gave the beer muscles a good workout last night.'
by Tommy Trawler February 9, 2004
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A special kind of muscle that can only be created by a few men in this world. To grow the type muscle you must drink many many bud lights whether it be keg can or bottle beer, as long as it's bud light. The only twist is that you have to be born on valentines day. In this case all the bud light that's consumed will become Beer Muscle because of all the 12 ounce curls and the females love it.
"Check out that guys muscles. I heard he doesn't even work out."
"He doesn't, he just drinks Bud Light every day and developed beautiful Valentines Beer Muscle"
by Beer Knowledge February 14, 2017
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A condition that makes a guy think he's got a purple heart and he's rescuing a damsel in distress from a bank robber, no matter the actual circumstances.
You could tell the guy was flexing his beer muscles that night.
by The Original Agahnim November 20, 2021
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What drinking enough will convince you that you have.
That group of guys with the beer muscles thought they had almost killed somebody they were trying to persecute, since beer muscles can throw somebody's sense of reality off. They didn't even really black the guy's eyes, he just had a bloody nose and that was about it. You would think as many times as they hit the guy, they would have been able to really fuck him up badly, then he really would have been lucky to be alive.
by The Original Agahnim November 11, 2021
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