bear raid
n.— «It’s no coincidence that since then the size and severity of market declines is unprecedented. It was a hedge fund traders dream come true. When a group of hedge funds gang up and sell billions in what is called a “bear raid,” they can drive any stock down and you and I are left as innocent bystanders.» —“Short selling rule change hurts market” by Nick Massey Edmond Sun (Oklahoma) Mar. 30, 2008. (source: Double-Tongued Dictionary)