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a Jeffrey, which in turn means a blunt with a toxic mix of drugs, usually:
• Weed mostly
• Opium

• Herion (also known as V16)
• Crushed up E
• Clorox
• Morphine

• Valium (also known as V10)
• And a bit of Angel dust
in Get Him To The Greek, Jonah Hill's heart was racing so fast like a Jeffrey, and that was because his heart is like a V32 engine waiting to EXPLODE.
by popolocho March 21, 2012