Top definition
Nerdspeak for Pabst Blue Ribbon. The chemical symbol for Phosphorus Bromide is PBr. PBR is the acronym for Pabst Blue Ribbon.
If you don't tell me what kind of beer you want me to bring to the party, I'll go cheap, and you'll all be drinking Phosphorus Bromide.
by IKnowPhysics October 12, 2013
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