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To inject heroine into an erect penis just before orgasming. The effect is both explosive and calming. The combination of stimulant and downer exponentially increases the pleasure of each.
I wanted to try the smacky jack last night, but I was all out of smack!
by Loube July 29, 2006
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When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
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2
Smacky Jack is the act of shooting heroine into a vein in the penis just before orgasming. The combination has an overwhelmingly explosive then soothing effect.
Wow, I tried the smacky jack for the first time... and it was EXTREEEME!!!
by Loube June 26, 2006
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3
When heroine is injected into a vein in the penis while a man is orgasming. It is intended to exponentially increase pleasure.
I heard that the smacky jack feels like heaven. I want to try it but I don't have a girlfriend or any smack!
by Loube June 19, 2006
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