High Quality Content by WIKIPEDIA articles! The Quasi Universal Intergalactic Denomination (QUID) was a proposed "space currency" created as a viral marketing campaign launched by Travelex with the London-based public relations and advertising firm, talkPR. The full name is a backronym from `quid`, a slang term for the British Pound. The campaign stated that Travelex was launching a new form of money for space tourists that had no sharp edges, was chemically inert, and had other advantages over paper money.