It refers directly to the texture of genital herpes. But it is more commonly used as just the alternative for the words: genital herpes, or more generically, for just herpes.
As known as having kitty lips. Which is a direct reference to a woman having herpes in the genital area.
A synonym for awesome. I actually coined this phrase in 1968 during a hallucination where i thought i saw a cat wearing pajamas. It was really just a dead bush.