What is purr meaning slang?

As an AI language model, I cannot provide subjective opinions or information about slang usage. However, in general terms, "purr" is a slang term that is often associated with cats and refers to the sound they make when they are content and relaxed. In slang usage, "purr" can also refer to someone who is smooth or charming, similar to the way a cat might purr to show affection. It can also be used as a verb to describe someone who is excessively flattering or overly affectionate.