A wicked-sounding muffler made by Flowmaster, featuring "delta-flow" technology. Sounds amazing on muscle cars.
One can hear Super 40's at a car show featuring classic cars.
by 7398 September 11, 2008
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hood reference that means 40 caliber gun shots .
Dam ma nigga you hear dis 40's clappin down the block?
by hoodbasta June 21, 2019
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The round was developed by Smith & Wesson in 1990 by shortening the casing of the very powerful 10mm Auto. Even though it's only been around for nearly two decades, it has already achieved as much popularity in the US as the 9mm and .45 Auto, which have both been around for over a century.

Basically the round was created to solve a problem that never existed. It was developed to bridge a supposed "gap" between the 9mm and .45 Auto even though both rounds have substantial power as it is. The round appeals to a certain number of semi-auto enthusiasts who are dumb enough to believe that the 9mm is a pee-shooter, yet are too intimidated by the .45 Auto, which only has slightly more recoil. Still, it is a great round for self-defense.
Know-it-all: Don't buy a 9mm for self-defense, I've heard stories of 9mm bouncing off windshields and not being able to take down raging 6' 6" hoodlums on crack. Get a .40.

Me: And can you give me an example of a .40 S&W getting the job done?

Know-it-all: Ummm...no. But 9mm is still wimpy because I said so.
by WALTHERMAN March 25, 2010
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A complex sex position in which the man waits for hours to get an erection, and the woman complains about how he's an alcoholic dickwad.
"I want to experiment in sex, let's try 40's Style!"
by ZeiWasTaken May 10, 2022
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Kids born between January 1st, 1935 and December 31st 1937 .
They remember the Holocaust very well. They were also a part of the Holocaust. they lived in WWII. They all died in concentration camps. They even saw planes bomb their towns.
"BILLY! WATCH OUT FOR THAT PLANE!"

"Oh shoot, I'm being gassed right now"

"Why am I so skinny? Oh yeah, it's because I'm a 40's kid starving at my local concentration camp""
by BigDaddyPapa Productions February 14, 2018
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A theme party where people get together dressed in their best ghetto fabulous clothes carrying their favorite 40 ounce for consumption. The 40 ounce should be shit like Colt 45 or Crazy Horse...St. Ides is acceptable though too upper class for this shit.

Host of the party and all guests should in no way know anything about the ghetto except what they see on TV and in the movies and what they read on the back of a ginsing box.
Host: Yo dude, lets have on of them 40's night parties.

Potential guest: Good idea. We can get some cheep ass shit dress like we see on TV and watch Deep Cover or New Jack City.

Potential guest #2: Yo, I can make believe I blastin a fat cap in yo ass too...you silly freak.

Host: ok it's set. A 40's night and bring yo own hoes....leave the nines and caps in you pants too...dis my house.
by B November 24, 2004
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The main assailant of America and the free world during World War 2, as is immortally depicted in the stained glass window. Some claim that the menace threatens our freedom even today.
"Has anyone seen the stainglass window that depicts a knight fighting a frightening dragon? Well that dragon threatened students during WW2, and though that seems long ago, I'd argue that the same menace plagues the members of our class on this very day--"

"HAHAHAHAHA!!!! Wait, what? We're fighting dragons????"
by Sideler A July 16, 2003
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