jingle mail
n.— «When the recession of the early 1990s hit, many owners of converted apartments in the Boston area, and especially those who had purchased them as investments, resorted to “jingle mail”—sending condo-unit keys to their banks or mortgage companies and walking away.» —“Boom got away from many condo owners” by Davis Bushnell Boston Globe (Massachusetts) Dec. 6, 1997. (source: Double-Tongued Dictionary)
Further reading
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