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PEBKAC
From Wikipedia, the free encyclopedia
PEBKAC is an acronym which stands for "Problem Exists Between Keyboard And Chair".
Also used is PEBCAC, which stands for "Problem Exists Between Computer And Chair", or PBKAC, which stands for "Problem Between Keyboard And Chair". Sightings of PEBCAK ("Problem Exists Between Chair And Keyboard") have been reported. Another variation is PIBKAC ("Problem Is Between Keyboard And Chair").
It is most commonly used by experts to describe to one another that the problem was not in the computer but was instead caused by the user operating it.