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3.
Another word for pooping. Also a type of vandalism unless it's done on the toilet.
A: I would like to get to your attention that someone has vandalized your lawn
B: It's defecation. I thought a dog took a dump in my lawn and I was just about to find and sue the owner of whatever dog pooped there.
by NHRHS2010 June 16, 2011
 
1.
The most honorable and at the same time relaxing and emotional action in a man's mean day.
I have been decorated by the Queen of england herself for having taken a crap in the royal bathroom. The most noble defecation of the garter
by XxLorDxX November 21, 2010
 
2.
Defecation of Feceation is the act or process in which organisms in your body help remove solid or semisolid waste materials from the digestive tract, which exits through the anus. This is done by Waves of muscular contraction known as peristalsis. In the walls of the colon move fecal matter is moved through the digestive tract towards the anus where it is released.
John had to go to the toilet after dinner and he dropped defecations out of his anus into the toilet.
by Daniel Morton August 21, 2006