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The invisible coat you where over your tshirt/short sleeve/bare chest when walking home on a freezing night out without feeling the cold.
"Aren't you cold?"

"No i'm wearing my beer jacket!"

"Nice one"
by justpaul February 23, 2005
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Jun 6 Word of the Day
True of COVID-19 sufferers and of George Floyd. The key phrase at this moment in American history.
"I can't breathe, said Floyd as he was being suffocated. "I can't breathe" thought more than 100,000 victims as they were dying of Covid. "I can't breathe" chanted countless Americans in the streets, protesting enduring police brutality.
by Monkey's Dad June 01, 2020
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2
The ability not to feel the cold when drunk. Also know as a beer coat
"You must have been freezing last night walking home?"
"I didn't feel it. I had my trusty beer jacket on"
by !david clarke! May 29, 2007
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3
the lack of a need for a real jacket due to the warming effects of alcohol
dude are u not cold?? no ive got a beer jacket on!!
by Rossa O' Donovan January 22, 2009
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