The action of masturbation while wearing a Rastafarian hat (preferably with dreadlocks) and smoking large sums of marijuana. Generally those who partake in this activity shout "yaman" at the moment of ejaculation.
Fred: "Hey, you guys wanna have a huge rasterbation session tonight?"
Tad: "You know it!"
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To spend many hours working in photoshop making a picture look exactly the same as it did when you started.
"Man... My eyes are killing I've been working on that new logo all day. I need a bigger monitor"
"Yeah, they always said that too much rasterbation would make you go blind"
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A person who spends too much time on the Internet or the computer in general.
Damnit, he's been on Newgrounds all day. He is such a rasterbator .
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To spend to much time on the Internet or the computer turning a whiter shade of pale.
Example of Rasterbate | Go outside every once in a while before your brain starts to rot from too much rasterbating.
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