CNN
n. countablen. a very rude and offensive word for a person that you find extremely annoying or unpleasant. It is one of the strongest insults in English and can cause a lot of trouble if you use it.
n. a highly offensive and vulgar term for an unpleasant or contemptible person. While originally referring to female genitalia, it is most frequently used as a harsh personal insult; register is extremely taboo in most English-speaking cultures.
He was acting like a total cnn at the party.
The argument escalated quickly when one driver called the other a cnn, leading to a physical confrontation.
Highly offensive and vulgar. In British and Australian English, it is sometimes used among close friends in a non-literal, semi-ironic way, but remains extremely risky for learners.