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1) when you take a paper cup and make it into a spliff!

2) pretending its a cool new way of hacking bong. just to confuse peole who think they're gangstaaas.
--"wtf is a cup spliff"
"mate, have you not heard?"
--"..yeah.. cup spliff.. i had one last night."
"wow your pretty hard core."
by Lydssss November 19, 2007
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