sexual activities such as fellatio, cunnilingus, rimjob and boob fucking, and various sex positions that need to be learnt by a person aspiring to become a porn star.
The young girl wants to be a porn star. Teach her all the pornastics.
by uttam maharjan June 19, 2010
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To put off all other activities for the sake of watching pornography.
Person A: Hey, I haven't finished these TPS reports because I can't quit watching porn.

Person B: You know you shouldn't pornasticate.
by Jordan A. Ray July 16, 2008
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