when you take a dump and are able to cleanly leave the toilet after only one butt wipe. Technically a "no-wiper" because the one wipe was just a confidence check. Living on the wild side would be rolling the dice and not wiping at all.
I was upset when I had to poop after I just took a shower, but I was less irritated when it turned out to be a one wiper.
A bowel movement that requires only a single wiping in order to properly cleanse the anal cavity. (Note: the single wipe is enacted for 'security' purposes alone, otherwise no wipe would be necessary).
Man I took a huge dump last night and I was almost out of toilet paper, but it was all good because it was only a one wiper!
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.