person 1: would you like to try the permanent moonbase tonight? person 2: no, unfortunately, i have diarrhea, it wouldn't pass back and forth properly
the sexually-charged act of defecating from one anus to another, back and forth to stimulate prostates of both participants
"person 1: would you like to try the permanent moonbase tonight? person 2: no, unfortunately, i have diarrhea, it wouldn't pass back and forth properly" What is the definition of "permanent moonbase"?