A complete evacuation of the bowels that does not require the use of toilet paper - usually one check-up wipe is applied just to be sure.
The term originates from the sport (?) of tractor-pulling.
May require diet adjustment to materialize.
John was almost out of toilet paper, luckily he was able to pull a full-pull. He took a second to marvel at the consistency of the wholesome turd before he flushed it down the toilet.