DF module

A coded reference to a dense user or coworker. "DF" stands for "Dumb F***" as in "The DF module in sales can't seem to set up the default printer."

Similar to PEBCAK (Problem Exists Between Chair And Keyboard) and ID-10-T (Idiot).

See also : clue-by-four  

NetLingo Classification: Online Jargon

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