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!"
by 7-$k! June 24, 2009
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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!"
by 123jared123 May 08, 2010
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