A person who opens the door of a bathroom stall while someone else is in there taking a dump. This situation is most often followed by an akward silence and a run for the door.
A person who, without any hesitation will openly eat leftovers or others food, even if others need or desire it. They are known to often take advantage of the five second rule.
"Hey! Joe ate the whole tub of spicy salsa dip, now there's nothing to dip the Doritos in, what a turd burgler."
You can get some of the excrement, but how can you get a whole turd on your willy? Although it's real dumb it is sortonly not as uncreative as most of the other shit, these shitheads make up from their weed and weak genes on Urbandictionary.com.