greenmailnoun [ U ]
uk/ˈɡriːnmeɪl/usSTOCK MARKETthe act of buying enough shares in a company to be able to control it, in order to force the owners of the company to buy back these shares at a very high price:
The stockmarkets are not yet free of greenmail.
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blackmail noun
greenmailverb [ T ]
uk/ˈɡriːnmeɪl/usSTOCK MARKETto buy enough shares in a company to be able to control it, in order to sell them again at a very high price:
Did he want to greenmail the company into buying him out at a fat profit?
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blackmail verb