noob
Shorthand/leet spelling of "newbie". Also spelled "n00b", with two zeroes rather than two Os (see leet) or "newb". In some Internet circles, the term "noob" or "n00b" has a negative connotation, generally not associated with "newb" or "newbie", where being a n00b carries a connotation of ignorance and laziness. N00bs may lack the energy or the gumption to RTFM or otherwise attempt to find out about a subject themselves.
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Source: Internet slang