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n, "Mainstream" dubstep music considered crap by purist and original dubstep fans, especially as it is very different to the origins of the genre.

Fob meaning "fresh off the boat", implying that it is liked only by people who have only started liking dubstep as it has become popular.
"Check out this sick new track from (X)!"

"Nah man! that's fobstep!'
by ChanceyLord April 03, 2011