Top Definition
Powdered Caffiene; either from crushed caffeine supplements or ordered from a pharmecuetical company. It is only called this when insufflated (snorted)
"You wanna do a couple rails of poor mans blow before class?"

"I just got a half ounce of poor mans blow from Drug Chem Labs."
by Johnny R. June 25, 2007
5 Words related to poor mans blow

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