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Sivinski Product

The anti-Markovnikov addition of an carboxylic acid derivative across a di-substituted alkyne in a solution of cold, dilute, potassium permanganate (KMnO4).
"Gentlemen, we have synthesized the Sivinski Product!"

"We fucked up again! This is the Sivinski Product! START THE REACTION AGAIN!"
The most bad ass polish clan ever. dont fuck with these guys cuz theyll kill your whole family for laughs
mark siminski just killed brian and chris for fun.
Siminski by big m bitch February 3, 2010

Sheridan Slivinski 

A amazing girl who is very outgoing, and loves to make you laugh. She's very hot and a good girlfriend. Sometimes a little too honest for you to handle. She loves her family and friends. She's very loyal and kind to all, friend or no friend
Sheridan slivinski is my best friends she's the best!

Claire Shivinski 

Beautiful, funny, sarcastic, outgoing type of girl with a kind heart. Music taste is good as long as Taylor Swift, High School Musical, Jonas Brothers, and/or Spanish music isn’t being played. A Claire Shivinski is the type of person that tries and tries to be good at sports/activities/games but often comes up short.
Bill: Wow, that girl in that car is a Claire Shivinski..
Mark: who? Her?
Bill: Yes, her. She looks hot af and I think I hear shitty music coming from her blue crappy car
Claire Shivinski by Kev McAllister November 23, 2021
More from Urban Dictionary

Plate of Brown 

A plate of brown consists of foods that have little to no nutritional value, and are typically deep fried. A true plate of brown will also be accompanied by a dark soda.
Wanna go to meal hall & grab a plate of brown?
Plate of Brown by Cheddar Craigson September 18, 2020
Word of the Day on October 22, 2026

Larpenomics

When finance content creators rent out fancy cars and flex cash to seem richer than they really are in order to promote and sell their “get rich quick” courses.
Andrew Tate has mastered the field of larpenomics
Larpenomics by Rbois09 October 21, 2026
Word of the Day on October 21, 2026

Palmela Handerson 

Your hand that you masturbate with.
Girlfriend: What are you going to do for the next week while I'm on holiday?

Boyfriend: Have a visit from Palmela Handerson of course!
Word of the Day on October 20, 2026
x:"Girl your fit chewed today!"
Chewed by iod1o March 30, 2022
Word of the Day on October 19, 2026

Blue Movie 

A pornographic film.

The use of the word "blue" to refer to sexually explicit content was first recorded in Scotland in 1824. "Blue" meant "lewd" because prostitutes dressed in blue gowns.
I found your stash of blue movies under your bed.
Blue Movie by Shayde79 January 20, 2011
Word of the Day on October 18, 2026

fache-couture 

French slang, which translated, means "bull's fashion" but basically equates to "hyper trendy" or overly trendy. Used when a person wishes to express distaste at the latest fashion trend/fad, because it seems that everyone has a certain item of clothing or is wearing it. This term is most frequently heard in Paris but is slowly spreading to other parts of France.
1. That Burberry scarf is so fache-couture.
2. That purple American Apparel hoodie is so fache-couture.
fache-couture by bkgmh46x0x March 18, 2008
Word of the Day on October 17, 2026
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