1 definition by Billy Chum
The act of acting completely thug and quoting westside rappers, such as Tupac Shakur, while in reality being a complete fag. People who say to live with Westside mentallity will normally say that they don't mess around nor care what other people say, even though they typically care too much. They will often use the phrase "get down to business," in the gayest way possible.
Ronald said that he didn't care what other people say, he lives with a Westside Mentality by rolling his windows down and playing California Love.
by Billy Chum November 22, 2010