Top definition
One person shits into another person's asshole, who shits into another person's asshole, and so on until there are only 2 people left. Then, the last person shits it all into one of their mouths and they throw it up into a tube. Then, the last person who is waiting at the end of the tube, eats the combination of shit and puke.
I had my first reverse buttsex orgy last night. I was at the end of the tube. It was orgasmic.
by herpes121 April 19, 2011
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