||Well, congrats. You discovered it. You get to name it.|
Although this article is based on canonical information, the actual name of this subject is conjectural.
|| |— Katja casting the spell on Dean's bottle
in Inside Man
The breaking spell was a spell used by the witch, Katja, to knock back Dean's molotov cocktail, causing it to shatter.
After Hansel betrays The Winchesters and knocks down Sam, Katja casts the spell on Dean's molotov cocktail (which he intended to use it to kill Katja), it thrusts back and shatters.
A Latin incantation must be recited:
Rough translation: Edit