poison put
n.— «In December 1995, following several quarters of weak sales, Kmart Corp. came on the brink of a bankruptcy filing: Their problems stemmed from the possible exercise of $550 million of poison put bonds outstanding, which allowed holders to sell back, or “put” the notes back to the retailer, if the rating on the company’s senior debt—as determined by either Standard and Poor’s or Moody’s—fell below investment grade.» —“Alexander David” Pricing the Strategic Value of Poison Put Bonds Nov., 1997. (source: Double-Tongued Dictionary)