Back in ancient times, before battles of yore, the Romans would prepare themselves to fight against legends and other beings. In order to cleanse themselves, they would take (for their time) the greatest dump in recorded history. If you take such a cleansing dump that you can accurately predict the moment of the next good fortune that you will experience, you have just taken a roman dump.

Revealing to others that you have taken a roman dump will instantly improve your charisma score and open up more favorable dialogue choices.
Man 1: You have been in the bathroom all day! Did you fall in?
Man 2: Nahh..I just took a roman dump.

Man 1: Wow. You are my God.

Man 2: Of course - it was the only way.
by Master of Sageville April 15, 2010
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(roh-muhn spahy-der duhmp)
1. (noun) An act of questionably sexual behavior involving a pair of male participants (one seated in traditional posture on a toilet with second said participant sitting on the lap of the other participant facing in the opposite direction) and the subsequent act of simultaneous defecation (aka "dumping"). The derivation of the term "spider" refers to the 8 arms/legs and multiple eyes of the collective parties involved. The term "Roman" means absolutely nothing.

2. (verb) The act of performing a Roman spider dump
Hey!! We both have to dump before catching that train..but there is only one toilet!! Maybe we should have a Roman spider dump to save time.
by bonedogg January 23, 2007
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