Someone so stupid in school he or she dropped or flunked easy classes that were graded on a pass/fail basis.
What a pfidiot!

You failed gym class? You must be a complete pfidiot!
by Bad Kram February 8, 2010
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the name for people who create "pf" words.
I know the guy that created the word "pffhoon".
Yeah he's a total pfidiot!
by Mr Blobby789 January 2, 2011
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