当とう金きんMeanings1nounon-the-spot payment; immediate paymentarchaicArchaic term for paying immediately on the spot; compare with modern 即金 (そっきん).See also: 即金古こ文ぶん書しょには「当とう金きんにて支し払はらうべし」と記しるされていた。The old document stated, 'Payment shall be made in on-the-spot money.'