A mixture of Rastafarian-ism and masturbation, to "rasterbate" is the act of being stoned while masturbating.
After hitting the bong a few times, Jen and John went into the bedroom. Jeremy has no lady so he sat in the living room to rasterbate.
by couch.40 July 12, 2011
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.
by rasterbator1 July 8, 2009
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"
"Yeah, they always said that too much rasterbation would make you go blind"
by CheShA March 2, 2005
Example of Rasterbate | Go outside every once in a while before your brain starts to rot from too much rasterbating.
by j2p September 9, 2005