A term usually used by a frustrated tech support, help desk, or other product support person that involves explaining a procedure previously illustrated in the Instructions that came with the product that the user either threw out or ignored.

Pronounced "riffee"
Customer: How do I turn on my laptop?

Tech Support: Ryfi!

Customer: What's ryfi?

Tech Support: Did you read the instructions, sir?
by Jeb Vial December 3, 2007
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