From Valley Girls to the Kardashians, young women have long been mocked for the way they talk. Whether it be uptalk, creating slang words like "bitchin" and "ridic" or the incessant use of "like" as a conversation filler, vocal trends associated with young women are often seen as markers of immaturity or even stupidity. But linguists now say such thinking is outmoded. Girls and women in their teens and 20s deserve credit for pioneering vocal trends and popular slang, they say, adding that young women use these embellishments in much more sophisticated ways than people tend to realize.