Top Definition
A combination of bipolar and molar. Quite simply, it is a ruthless tooth that will kick your ass by any means neccessary.
"I'm sorry, I can't come in to work today, this byolar put of quite a fight..."

"MOMMMMM!!!! My byolars acting up again!!!!!!"
by Garrett Miller May 13, 2005
2 Words related to byolar

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