1. Getting too much pleasure from ripping a plaster (as in Band-Aid) off a wound and thus getting aroused, leading to the above word.

2. What occurs when a decorator gets bored/horny doing his job, then adding his "produce" to the mix of plaster that's going on the wall.
1. Ripping off the hair around my cut was such a good pain that I had to indulge in plasterbation.

2. After plastering half the room in Mrs. Smith's house, I got bored so I whacked off into the plaster tray in a fit of plasterbation. The walls might be a bit smelly in places.
by Avid WAS Fan July 25, 2009
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To masturbate while being plastered (severely intoxicated)
"Today sucked, I am just going to chug this fine Lagavulin and go plasterbate"
by YuriN March 18, 2008
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The act of masturbating after a night (or day) of severe drinking.
dude a: Got so wasted last night, went back to my place, got to plasterbating promptly.

dude b: Did your girlfriend watch again?
by hammerbeard September 14, 2011
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Masturbating to make a mold of your penile unit with plaster of paris.
Fundo wanted to share his penis with the world, so he plasterbated, with hopes of becoming extremely wealthy.
by authOOr June 26, 2006
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the action someone who is addicted to posting pictures of themselves on social networking sites such as Facebook, Myspace and Twitter.
Sami: "Look at me in in the mall, and me at school, and me in the fountain, and..."
Charles: "You really have a plasterbation problem..."
by Stan the Goob January 24, 2012
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A sexual act of storing one's semen in a very hot place to maintain the semen's liquid form. Once have enough semen is stored, the male spreads the semen over his partner's face and waits for it to dry, creating a plaster-like mold made from semen
Guy 1: How did last night go with you and Jessica?
Guy 2: Things got pretty freaky. I plasterbated her.
Guy 1: Lucky! I've always wanted to try that. You could probably sell the mold for a couple million to some art collector.
by SemenFartBubble69 November 6, 2015
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