The word hyphy (/ˈhaɪfiː/ HY-fee) is San Francisco Bay Area slang meaning "hyperactive." More specifically it is an adjective that describes the music and the urban culture associated with that area. It was created by Oakland-based rapper Keak da Sneak when he used the term on an album he recorded in 1994. The hyphy culture began to emerge in the late 1990s and early 2000s as a response from Bay Area rappers against commercial hip hop for not acknowledging their region for setting trends in the hip hop industry. It is distinguished by gritty, pounding rhythms, and in this sense can be associated with San Francisco Bay as crunk music is to the Southern United States.