1 definition by Tommy Trawler

Top Definition
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 09, 2004

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