Gibberish used by J.D. on Scrubs to sound out Turk's former phone number. Pronounced "kuh-fun-un-na-paw". Also can be exclaimed in anger or surprise.
J.D.- "Aw, man, I'm never gonna remember that, just keep kfnnnpa!"
Me- *trips over something* "Kfnnnpa! I'm so fucking clumsy!"