KILL

Calling off a trade or order that has already been placed but not yet executed. A trader or an investor cancel orders when the market moved against him or him (or because he or she has changed her mind). It is associated with "fill" or "kill" command, an order given to a broker for immediate cancellation after transmitting a buy or sell order. However, it does not guarantee unfilled orders will be killed especially in volatile trading markets with heavy volumes.