A pissant, also seen as piss ant or piss-ant, refers to a specific type of ant. The word is also used as a pejorative noun or adjective, indicating insignificance.he original pissant is any of a certain group of large ant species, commonly called wood ants, that make mounded nests in forests throughout most of Europe.
The most common cause of pain in the lower right portion of the abdomen is appendicitis, or an inflammation of the appendix. It occurs in about 10% of the population and it is most common between the ages of 10-30, although it may occur at any age.
Numerous conditions can cause pain in the right upper abdomen. According to the Merck Manuals Online Medical Library, pain that manifests in the abdomen, including the right upper abdominal quadrant, can be caused by the viscera or abdominal organs, structures outside the abdomen or the parietal peritoneum -- the membrane that lines the abdominal wall.