this time, for sure!

from Jargon File (4.4.4, 14 Aug 2003)
This time, for sure!
 excl.

   Ritual affirmation frequently uttered during protracted debugging
   sessions involving numerous small obstacles (e.g., attempts to bring
   up a UUCP connection). For the proper effect, this must be uttered in
   a fruity imitation of Bullwinkle J. Moose. Also heard: "Hey, Rocky!
   Watch me pull a rabbit out of my hat!" The {canonical} response is, of
   course, "But that trick never works!" See {hacker humor}.
    
from The Free On-line Dictionary of Computing (8 July 2008)
This time, for sure!

   <exclamation> Ritual affirmation frequently uttered during
   protracted {debugging} sessions involving numerous small
   obstacles (e.g. attempts to bring up a {UUCP} connection).  For
   the proper effect, this must be uttered in a fruity imitation
   of Bullwinkle J. Moose.

   Also heard: "Hey, Rocky!  Watch me pull a rabbit out of my
   hat!"  The {canonical} response is, of course, "But that trick
   *never* works!"

   See {hacker humour}.

   [{Jargon File}]

   (1995-09-27)
    

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