Definition of "yf" []

• Obsolete form of if. (conjunction)
• Yarn forward (abbreviation)

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• "- FSCK - yf (if you gotta ask, then you need help) - disk warrior (fix the directories/volume ...) - Install ONLY the Combo Updates from Apple (deltas are smaller but problematic from experience) - Repair permissions AFTER installs/updates."
• "I praye yor L [ordships] lette me know yor plesures how to use them yf the happen to make the lyke attempte, After thys my second warnynge. 184"
• "May 31, 2008 at 10:53 am an kil u yf u cum bak frum de dedd!"