I was trawling the Internet over my lunch break and ran across this. I'm very proud to say I already knew aglet, harp, minimus, nef, peen, rowel, and hemidemisemiquaver.
Does anyone else out there think that Jarns, Nittles, Grawlix, and Quimp sounds like a law firm?
While I'm thinking about it, Matt over at Defective Yeti has started something he's calling the Cliché Rotation Project that sounds like fun. I've been browsing the clichés at the places he suggested we look first, and at the moment I can't come up with any good replacements.