I only know as much about them as I can't possibly avoid knowing: That there are a whole mess of them whose first names all seem to begin with K, at least some are the offspring of Robert Kardashian (an attorney no one ever heard of prior to the OJ Simpson scandal), the girls all have giant butts - likely enhanced by surgery or falsies (though why anyone would want a huge a$$ is beyond me), they spend lots of time having plastic surgery and putting on gobs of makeup, they're famous for being famous or for marrying, fighting with, and usually ultimately divorcing famous people who've actually accomplished something (sports or music), they have or had a TV show that I've never seen, their faces are all over the supermarket rags, and they often seem to be feuding with one another.
Am I missing anything?