slang on for their hit song, also titled Broccoli. With the rise in technology and mass media, the dissemination of subcultural terms has only become easier. Dick Hebdige, author of Subculture: The Meaning of Style, merits that subcultures often use music to vocalize the struggles of their experiences. As rap is also the culmination of a prevalent sub-culture in African-American social spheres, often their own personal cultures are disseminated through rap lyrics. It is here that lyrics can be categorized as either historically influenced or (more commonly) considered as slang. Vernon Andrews, the professor of the course American Studies 111: Hip-Hop Culture, suggests that many words, such as "hood", "homie", and "dope", are historically influenced. Most importantly, this also brings forward the anarchistic culture of rap music. Common themes from rap are anti-establishment and instead, promote black excellence and diversity. It is here that rap can be seen to reclaim words, namely, "nigga", a historical term used to subjugate and oppress Black people in America. This word has been reclaimed by Black Americans and is heavily used in rap music. Niggaz With Attitude embodies this notion by using it as the first word of their influential rap group name. Freestyle and battle There are two kinds of freestyle rap: one is scripted (recitation), but having no particular overriding subject matter, and has yet evolved since the late 2000s to become the most commonly referred to style when the term "freestyle" is being used. It's primary focus has morphed from making up a rap on the spot, to being able to recite memorized or "written" lyrics over an "undisclosed" beat, not revealed until the performance actually begins. A variation is when a DJ or host will use multiple beats and will rotate them dynamically; it's the freestyler's job to keep his flow and not appear to trip up when the beat switches. Alternatively, keeping the rhythm or flow going can be substituted by "switching styles". This involves the rapper doing a variation of changing one's voice or tone, and/or the rhythm or flow, and potentially much more. However, this must be done smoothly, else any notoriety or respect gained can very quickly be lost all together. Some rappers have multiple characters, egos, or styles in their repertoire. The second, more difficult and respected style, has adapted the terms "off the dome", or "off (the) top" in addition to relatively less common