RTFB

from Jargon File (4.4.4, 14 Aug 2003)
RTFB
 /R.T.F.B/, imp.

   [Unix] Abbreviation for `Read The Fucking Binary'. Used when neither
   documentation nor source for the problem at hand exists, and the only
   thing to do is use some debugger or monitor and directly analyze the
   assembler or even the machine code. "No source for the buggy port
   driver? Aaargh! I hate proprietary operating systems. Time to RTFB."

   Of the various RTF? forms, `RTFB' is the least pejorative against
   anyone asking a question for which RTFB is the answer; the anger here
   is directed at the absence of both source and adequate documentation.
    
from The Free On-line Dictionary of Computing (8 July 2008)
RTFB

   <jargon> (By analogy with {RTFM}) Read The Fucking
   Binary.

   Used when neither {documentation} nor {source} for the problem
   at hand exists, and the only thing to do is use some
   {debugger} or {monitor} and directly analyse the {assembler}
   or even the {machine code}.

   "RTFB" is the least pejorative of the RTF? forms, the anger is
   directed at the absence of both source *and* adequate
   documentation rather than at the person asking a question.

   [{Jargon File}]

   (1995-08-20)
    

[email protected]