- 40 

The temperature at which the Celcius and Fahrenheit scales are equivalent. From this point the two scales diverge with 5 degrees Celcius equalling 9 degrees Fahrenheit.

Also very cold.

It was - 40 yesterday, I damn near froze my balls off.

- 40 by monkey40 July 26, 2009

40 

A bottle containing 40 fluid ounces of malt liquor beer. The beer is of low quality and fairly cheap to buy. A bottle can run you usually between 2 and three dollars depending on brand. 40's are popular in a variety of areas and are drunken by many types of people. Gangstas will drink 40's and will sometimes pour out a little of the beer onto the ground for their dead homies. Teenagers also like to drink 40's because it is a fast way to get drunk and all the beer is in one bottle opposed to drinking several smaller 12 ounce bottles and/or cans. Some brands of beer produced in the 40 ounce variety are Clot 45, Olde English, Mickey's, and King Cobra.

"Pass me that 40 motherfucka!"

"I'm gonna pick up some 40's for tonight."

40 by IceWarm June 22, 2004

40%

Refers to the percentage of police officers who commit domestic violence, as revealed by multiple studies. Sometimes used in the phrase, "40% of cops beat their wives, and those are only the ones who chose to admit it". Commonly used by people of an anti-police sentiment.

"Hey, you hear about that cop that shot that unarmed kid 27 times?"

"40%, dude."

40% by rawflax March 29, 2019

40 

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.

40 by sextypething December 15, 2003

40 

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

40 by tbag112ftfw April 12, 2010

40 

40oz of any alcoholic beverage. Colt 45, King Cobra, English 800, all example of popular 40oz.

Ya tuned a spanging job into a life long career
For a tin of tabacco and a 40 of beer
-Leftover Crack

40 by Andrew Apocalypse March 26, 2005

40 

Forty Ounce Malt Liquor, Popular with ghetto people

yo let me get a 40 right quick

40 by ac January 30, 2004