Hyphy (pronounced HI-fee; IPA: [ˈhaɪfiː]) is a style of music and dance primarily associated with the Bay Area hip hop culture. Although the Hyphy movement started in the early '90s, it began to emerge in the early 2000s as a response from Bay Area rappers against commercial hip hop for not acknowledging the Bay for setting trends in the hip hop industry.^[1][2] 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 music is distinguished by gritty, pounding rhythms and in this sense can be associated with the Bay Area as crunk music is to the South; however, contrary to popular belief, the musical aspect of the Hyphy movement has very few similarities to crunk music as it is dictated by more up-tempo beats. An individual is said to "get hyphy" when they act or dance in an overstated, fast paced, and ridiculous manner. Those who consider themselves part of the Hyphy movement would describe this behavior as "getting stupid" or "going dumb." In contrast to much of popular American culture where these phrases would be considered negative or even insulting, Hyphy is distinguished by taking this kind of behavior as a form of pride.