Noun: Any coin of extremely high face value that is minted by a government Treasury; especially one that is used to bypass Congressional spending oversight or restrictions, such as a 1-Trillion Dollar platinum coin.
"Republicans won't raise the debt ceiling? Screw 'em! We'll mint a supercoin and spend it anyway!"

"With a $1 trillion coin in hand, Treasury could deposit the money into Fed accounts, and pay its debts in that manner, instead of relying on bond issuance. And none of this requires Congressional consent."

coin Fed Timmay geitner debt ceiling dolla
by Djibouti_Jones January 4, 2013
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