rotters

Rotter is a noun in British English describing a person who is morally bad or unpleasant, typically in a petty or dishonest way. The plural rotters refers to such people collectively. The term is informal and often used with a tone of mild reproach or affectionate humor rather than as a harsh insult.

Etymology and regional note: The word derives from rot, meaning decay, with the agent suffix -er to denote a person who performs the action. It appears in English in the early 20th century and shares cognates in other Germanic languages. It is predominantly used in British and Commonwealth contexts, and is less common in American English, where stronger terms may be preferred.

Usage: Rotter can describe someone who cheats, lies, or behaves badly, but it is flexible and can be used about everyday minor misdeeds. It is not a formal term and is less appropriate in professional or neutral reporting. The plural rotters is used when referring to multiple people who are considered rogues or troublemakers.

See also: other informal insults such as rascal, scoundrel, and rogue. Rotter remains a light, colloquial label rather than a precise category, and its tone can range from playful to disapproving depending on context.