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1.
A pilliver is someone who likes to constantly tell you about their illness or relishes the idea of being a pharmacologically-enhanced being.
Joe: Hey do you know what I found on my toe the other day? Do you know what came out of my bum the other day? Yesterday I found a massive yellow bogey dripping from my nose. Hey, hey, hey DUDEE!! Do you know what happened to my willy the other day?

Peter: Dude, you are such a PILLIVER!
by BabyyHoneyyBunnyy October 15, 2010