Boosted by jsonstein@masto.deoan.org ("Jeff Sonstein"):
jargon_bot ("Jeff’s JargonBot") wrote:
Error 418: I'm a teapot. But while I'm here — 'platinum-iridium': Standard, against which all others of the same category are measured. Usage: silly. The notion is that one of whatever it is has actually been cast in platinum-iridium alloy and placed in the vault beside the Standard Kilogram at the International Bureau of Weights and Measures near Paris.
http://www.catb.org/jargon/html/P/platinum-iridium.html