What is the connotative of rat?

The connotative meaning of "rat" often implies treachery or betrayal, as it is commonly associated with someone who informs on others or acts disloyally. Additionally, it can evoke feelings of disgust or fear due to the negative stereotypes surrounding rats as dirty or disease-ridden animals. In a broader context, calling someone a rat can suggest that they are untrustworthy or sneaky.