A "Turd Bugular is a person who breaks into someone eles home and breaks or steals all of their shit and procedes to do the personin the ass after he does this and then leaves once he is done with the but rapping.
When you're forced to take a dump in a public restroom and you're just about to drop the bomb, when someone comes into the bathroom and tries to open the stall you're in! This cases the shit coming out your ass to suck back in and your meaty dump to be interrupted.
One who is a theive in the world of turds. He or she may rob the innocent of their stool. This thing may be obsessive of waste products and is fascinated by the pooping process.