40 percent alcohol in liquor
cognac, most regular vodka, tequila, whisky, brandy and rum are 80 proof
by joshua001 March 10, 2007
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1. Highly intoxicating.

2. Skilled / well done

3. The best in field.
"When in come the rhymes known as the 80 proof" -- Toadstool
by PAPI_PERREAME April 23, 2005
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When a seemingly depressing event happens to individual who drank a significant amount of alcohol and begins to cry tears with an alchohol content of %40.
Bearer of bad news: "Russ, your dog just died."

Drunk Russ: CHECKERS!!! WHY!!!

Bearer of bad news: If your gonna cry, let those 80 proof tears fall into my drink, make it a bit stronger.
by foosman February 25, 2010
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1: Damn man, I had another 80 proof guest last night at my place.
2: dude you need to stop drinking thst much
by LilMejia March 17, 2018
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