Hyphy (pronounced HI-fee; IPA: [ˈhaɪfiː]) is a style of music and dance primarily associated with the Oakland Bay Areahip hop culture. It began to emerge in early 2000 as a response from Bay Area rappers against commercial hip hop for not acknowledging the Bay for setting trends in the hip hop industry. Although the "hyphy movement" has just recently seen light in mainstream America, it has been a long standing and evolving culture in the Bay Area. Bay Area rapper Keak Da Sneak takes credit for coining the term when, as a young boy, his mother would often tell him he was hyperactive. He would repeat the word "hyper" as "hyphy".
Hyphy is distinguished by gritty, pounding rhythms, and in this sense can be associated with the San Francisco Bay Area as crunk music is in the South. Contrary to popular belief, the musical aspect of the movement has very few similarities to crunk music, as it is dictated by more uptempo beats. An individual is said to "get hyphy" when they act or dance in an overstated and ridiculous manner. Many in the Bay Area would describe this as acting "Retarded", "Riding The Yellow Bus/Short Bus", "Stupid" or "Going Dumb". E-40 is seen by many in the Bay Area as the "door opener" to a much bigger movement yet to be exposed to the world in its entirety.