Siminski

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

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!"

Sivinski Product by 123jared123 May 9, 2010

Sivinski 

A Sivinski is a gorgeous person inside and out. They are funny, intelligent, fun loving, nice, down to earth, and great advice givers. You should never let go of a Sivinski, cause you know you have something special.

"That girl is so awesome! whats her secret?"

"She is a Sivinski!"

"Oh that explains it!"

Sivinski by 7-$k! June 24, 2009