Definition
"Nark" is British slang, synonymous with "narc." It refers to someone who informs on others to the police, especially regarding illegal activities. It carries a strong negative connotation, implying betrayal and untrustworthiness. Think of it as being the person who snitches in class 😒. A nark is seen as disloyal and disruptive. It’s essentially a social outcast within certain groups.