Like, totally - The "U.S. English adolescent hedge" is imbued with greater meaning after a scholarly study discovers that "like" isn't just - um - a discourse particle, but rather can play many roles in spoken language. Muffy E.A. Siegel, a linguist at Temple, found that the word can mean approximately ("He has, like, six sisters.") or can be used to signal exaggeration ("She's, like, 100 feet tall."), among other functions. Now, what about those utterance final tags, and stuff?