1 definition by Placentoid

Top Definition
The process of destroying someone's asshole so completely that afterward a terraforming process can take place to make the ass capable of sustaining life.
I forgot to get my viking wife a valentines day gift, so she proceeded in Asshole Terraforming so brutally that half of our livestock now live there, complete with a chemically stable atmosphere.
by Placentoid April 30, 2013
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