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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
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