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.
1 Gallbladder disease-This too may cause pain in upper right abdomen, which may be experienced as pain under right rib cage. 2  Gallbladder disease occurs due to inflammation of the gallbladder, most often, due to gallstones. 3  Gallstones form when fluid stored in the gallbladder hardens. Ulcers-Pain in the lower regions of the rib cage may also be due to an ulcer. 2  An ulcer is an inflamed wound in the upper GI tract. 3  Ulcers occur when inflammations cause wounds and sores in the stomach lining. 4  The H. pylori bacteria and Nonsteroidal anti-inflammatory drugs (NSAIDs) are common causes for ulcers.