A state of mind-bowel agreement where the the mind of the individual realizes it cannot allow a fart to occur because there is a real danger of sharting one's self.
After calculating the odd's of sharting due to the unstable state of his anus, Manny and his mind called a "shartruce" with his bowels until he could reach a comode.
by 3dPulP May 29, 2012
A verbal agreement amongst two or more friends never to reveal to anyone else their most embarrassing shart stories.
Jim and Danny formed a shartruce after they both realized they had similar but singularly unique and thoroughly reputation killing shart stories.
by Ellebelle12 April 4, 2012