A Korean dude who muds like a maniac and farts uncontrollably.

Generic, no-name shoes or even worse shoes with corny names (i.e. pro-wings, avia, sike (just glue it), four-stripe adidas, ragamuffinpinwheelsdeluxe. . .).

generic shoes, probably bought at Kmart

It's an early 80's word. Bobos: n. refers to an article of clothing with no particular name; no name brand. ie. shoes that don't have a name brand.

something really ghetto

Bourgeois Bohême, in French.
Yuppies or dinks who live as is they weren't, love to differentiate themselves by visiting foreign countries before the herd of ordinary tourists flock after them (Croatia a few years ago, now the Baltic states), eat alternative/fair trade/organic food such as "bio fair trade Miso soup". They tend to live in mixed neighbourhoods to be near the poor, but they send their children to private schools to avoid too close a contact with the natives and they price all the poor out of the neighbourhoods they gentrify. Of course they concentrate in some parts of Paris and never could live in "la province". They often vote for the Communists or the Greens but take the fullest advantage of the tax gifts offered by right-wing governments.

something that is jenke, ghetto,fake. not genuine. foul, shiesty, or generic.