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To make something less FOB-by.
To make a lame person cool.
To improve someone or something.
Pey Ong Mei changed his name to Peter, wore gangster clothing, and learned some slang in efforts to defobitize himself.
by AWhiteBalverine January 07, 2010
to Americanize, to make less fobby or Asian.
to make cooler and less nerdy.

To take off the Asian of someone.
Chen Chen was defobitized by his wonderful little sister; he stopped getting Cantonese haircuts and even made friends other than his graphing calculator.
by Chinky Chen January 18, 2012