1. A single piece of poop; A poop.
2. A person who people consider annoying or obnoxious. Not someone you want to be around, just like you would not want to stand around a piece of poop.
3. To turd or to take a turd; To go poop.
1. Before I flushed I turned around and admired the great big turd I had just laid in the toilet.
2. I did not go to Jeff's party because I always thought he was a real turd.