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Common street slang for crystal meth (methenphetamine). Used because coke is expensive for a short high while crystal meth is much less for almost a 48 hour high.
Guy: I'm gonna go pick up some coke for the weekend.
Salesguy: Why try coke when you can try poor mans coke, it's much cheaper and it last longer ... It's Great!
by Rapapapaptta February 23, 2006