40

A popular firearms caliber.
.40SW (Smith and Wesson).
Powerful and compact, it is the choice caliber of law enforement and criminals alike.

"Aint no nigga try'a messin with ma 40 cal, by smit n' wessin'"

by .357ROB September 30, 2003

40%

It's blow or smack. 40% purity of either is second tier and most likely to NOT kill the occasional user.

Most people come here because of A Vigilante thinking 40% means a blow job, it just means blow ( or smack ). Unfortunately some drop out screen writer did a search for abuse related terms and stumbled on some elementary school kids definition about swallowing, so now we're all stuck here in the quagmire of a misused 40% slang term making its way into pop culture. In the movie 40% means head because he thinks she's a prostitut; for the rest of us it's just a way to get through the day.

by Dirk_Diggl3r September 7, 2019

40

a number that follows 39

39 + 1= 40 and that is the end of the story

by Tina Fey November 17, 2006

40%

40% is when a female gives a male head and swallows... Girls that give head and swallow at least once a week have a 40% less likely chance of getting breast cancer so it works out for both parties.

Man-You ready to give me some 40% tonight?
Woman- I can't wait to 40% later on

by Kevin J C March 15, 2011

40

40 ounces of life's best source.....beer.

Get me a 40 of coors

by Big Smoke Dogg November 25, 2003

40

40 oz. of beer. Usually of a low quality and makes you instant white trash when you drink said bottle

Judy, get me a 40 bitch.

by ducttape16 March 29, 2003

-40

The IQ of John Kerry.

John Kerry has an IQ of -40.

by pseudonym pringles September 14, 2014