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Shady or sneaky in nature. Usually describes a person.
A guy took coworkers money for movie tickets that turned out to be cheaper than he quoted and he did not mention it to his coworkers or refund the money... That's one sheisty asshole.
sheisty by Darci "Dirty-D" September 9, 2004
Dates back to a 1850s lawyer in NYC using very ambiguous methods to obtain right in law suits. As his surname was something like Sheister a judge used "sheisty" as an adjective referring to methods that are immoral, impure, two-faced, opportunist, unreal, fake.
He's a sheisty guy. Don't use sheisty methods.
sheisty by arturelis October 18, 2004

sheist/ sheisty 

a lying, cheating, dishonest, stealing, or simply shady mother fucker who steals $40 from his neighbors purse and makes you pay for pizza that night!!! what the fuck
I know that sheisty bastard cris stole my shit but hes not admitting to it...even though i saw him do it.
sheist/ sheisty by "Jeremy" April 17, 2003

Sheisty  

To be sheisty,to be a sheist:

To succeed sneakily with mallice
To venture covertley with intent for a personal gain in an subtle manner (sneeky manor)
ie. when your cat steals your spot on the couch he examplifies the true nature of a sheisty mother fucker
note: chanage the spelling and you are sheisty mother fucker
shut up eat a dick
Sheisty by drunkards May 10, 2008
A modern adjectival outgrowth the noun "shyster." The original term refers to someone who behaves in a disreputable or unethical fashion. Thus a "sheisty" person or behavior is one which appears overtly, even lewdly, unscrupulous.

The origin of "shyster" may be from the German "Scheißer" meaning pooper (MW) or from the old use of "shy" meaning disreputable (OED).
The guys at that party were completely sheisty.

You look really sheisty when you grease your chest.
sheisty by sheistamatic October 4, 2011
The action of being steist
"Damn Daniel back at it again with the White vans. Steisty man!"
steisty by JackL:))) August 27, 2016
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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
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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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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