What Are "pissants"?

What Are "pissants"?

In the United States, the word "pissants" or "piss ants" generally refers to nuisance ants that are known to invade homes. Such infestations may involve any of a number of small ant species, including Argentine, crazy, ghost, odorous house, pharaoh and white-footed ants.

The term was originally used in reference to several ant species native to certain European forests. The name came from the urine-like odor produced by the combination of formic acid from their venom and the pine needles and straw they used to build their mound-like nests. In English slang, "pissant" also describes an insignificant or irrelevant person or object.