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Four Banger 

A calculator that supports only, or only a few more functions than, the four basic math operators: addition, subtraction, multiplication, and division.
The Burroughs Model C3660 was a popular four banger calculator.
Four Banger by Mike Blaszczak August 15, 2006

Four Banger 

The Four Banger is a booster pedal for electric guitar. The pedal contains four different booster circuits that each have their own separate boost volume knobs and their own on/off switch; this enables more than one boost to be used simultaneously. The different boosters are as follows: a Germanium Treble boost in the style of the classic Rangemaster, a super-clean Opamp boost (original design), a MOSFET boost (in the style of a certain popular boost with gain control that crackles), and a JFET mu-amp boost based on the popular DIY MiniBooster designed by Jack Orman. They are stacked in series, which enables different combinations of overdrive and fuzz.
I absolutely ripped @$$ last night at that gig, especially when I plugged in my trusty old four banger.
Four Banger by My sexy marbles September 7, 2009

Four Banger 

When a woman is fingered with two fingers in the ass and two fingers in the pussy.
That dirty ho got a four banger from my homie!
Four Banger by MuckyMouth January 26, 2008

four banger fart/dump

Whenever you take a dump and you poop along with make a fart noise that is a result of air in the stomach, possibly heartburn. This fart will last more than ten seconds and is rather loud for a fart. It will sound like a 4 cylinder car shifting gears in fart form. It is possible that you can poop loosely too.
A four banger fart/dump sounds like a four cylinder car shifting gears and is very similar to shotgun pooping, but you do not feel a rush to go to the toilet. This poop will sometimes come out with force. The farting/poop sounds are more of an explaination for this. Four banger/fart dump, shotgun poop ( if there is a pause between the rushed dump as in diaherrea.

four bagger 

describes a woman so utterly and completely repulsive that you should be ashamed of yourself for even thinking about having sex with her.

One bag over her head.
Second bag over yours.
Third bag over the dog's head so it doesn't howl.
Fourth bag by the door in case anyone barges in.
"Cher is a four bagger."
'Paper or plastic'
"Plastic so I can suffocate afterwards"

four bagger 

Four strikes in a row in a game of bowling (offcial name).
David just got a four bagger!
four bagger by Chris March 26, 2003
More from Urban Dictionary
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
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