A forty-ounce beer used by cheap people or those looking for a quick high
Let's get this party started
Let's keep them 40's poppin
Let's just get buzzed and stay f'ed up

We'll keep them panties droppin
by tbag112ftfw April 12, 2010
A 40-oz. bottle, specifically one filled with an alcoholic beverage.
Shut up and give me a 40, dumbass.
by progamer124 January 18, 2003
A civilian or any non-law enforcement person who will (try to) bust you.
You check for people in here, I'm not tryna get caught

Yeah, no 4-0, were good.
by pitabreadyum July 01, 2010
A bottle containing forty fluid ounces of beer, ale, malt liquor, distilled urine, etc... Usually costs under 3 bucks and is the equivalent of about 3 1/3 standard size (12 fl/oz.) cans or bottles of beer.

What you drink when you wanna get but all the money you have was change found in your couch and/or car.
I once paid under two dollars for 40 ounces of malt liquor, it was the worst libation I had ever consumed, but I got pissy drunk.
by sextypething December 15, 2003
Adjective; forty ounces of malt liquor.
I'm goin' down to the stop n' rob, n' pickup a 40.
by TYSON R. May 11, 2008
slang for a fourdypronunced four-o.
He the the store and get me a 4-0.
by B from the bay December 23, 2005
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