Top Definition
1. Noun form of unbeknownst

2. A drug with which you (probably Tracy Morgan or a date rapist) dose another person (probably Jay Mohr or a club girl) without their consent
JM: "So I hit the J and it felt like glass was going down my throat so I vomited immediately and I'm like what the fuck Tracy, and he goes 'You neva smoke PCP before Jay Mohrs? You neva smoke sherm? You didn' smell it?'"

PO:"He gave you unbeknownsties!"
by Bernice Darunia November 06, 2011
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