Mzawwaz" or "Zouzou" or "Zawaza" or "Waz Waz": Lebanese Slang, words originating form the name "Joseph", common in Lebanon, and which is often changed to "zouzou" in an endearing way.  Used as a slang to refer to low class people with no taste of fashion or behavior.

Sample conversation:

Person 1: "did you see the bling t-shirt he was wearing at that wedding, so vulgar and non classy"

Person 2: "ya m3allim el zouzou bi 2oul 3anno zouzou"