Syndeucy 

A variation of Acey Deucy (which is a variation of Backgammon). In Syndeucy, the pieces all move counter clockwise with both opponents coming onto the board in the same quadrant. This makes for a much more active game with much opportunity for revenge.

They played Syndeucy into the night, oblivious that Sean Richardson (the creator of Syndeucy)had passed his idea to them through a chain of players.

Syndeucy by Gregory V. Richardson October 4, 2003

Syndeucism 

sin doos ism (n) 1. The simultaneous or near-simultaneous timing of defecation by two individuals without each other's knowledge, but sharing a bond such as friendship or homosexuality. 2. The creation of the urge to defecate by one individual, based on the knowledge that someone else has just defecated or has the urge to defecate.

Dude! My buddy and I were each dropping a deuce at the same time across town from each other ... we totally had syndeucism going on!

- Hey dude, I just laid the biggest turd.
- Oh my God, I must have syndeucism ... now I gotta take a shit too!

Syndeucism by Corkjob December 4, 2010