1a thin, pointed piece of metal, wood, or another rigid material. a large stout nail, especially one used to fasten a rail to a railway sleeper. each of several metal points set into the sole of a running shoe to prevent slipping.
) a pair of running shoes with metal points set into the sole.
chiefly British a pointed metal rod standing on a base and used for filing paper items such as bills, or journalistic material considered for publication and rejected.
informal a hypodermic needle. 2a sharp increase in the magnitude or concentration of something:the oil price spike Electronics a pulse of very short duration in which a rapid increase in voltage is followed by a rapid decrease.
3British informal a hostel ward offering temporary accommodation for the homeless: he queued at the soup kitchen or the spike 1impale on or pierce with a sharp point:she spiked another oyster (of a newspaper editor) reject (a story) by or as if by filing it on a spike:the editors deemed the article in bad taste and spiked it stop the progress of (a plan or undertaking); put an end to:he doubted they would spike the entire effort over this one negotiation historical render (a gun) useless by plugging up the vent with a spike. 2form into or cover with sharp points:his hair was matted and spiked with blood [no object] take on a sharp, pointed shape:lightning spiked across the sky [no object] increase and then decrease sharply; reach a peak:oil prices would spike and fall again 3 informal add alcohol or a drug to contaminate (drink or food) surreptitiously:she bought me an orange juice and spiked it with vodka add sharp or pungent flavouring to (food or drink):spike the liquid with lime or lemon juice enrich (a nuclear reactor or its fuel) with a particular isotope: the plutonium mixture could be spiked with caesium-137
4(in volleyball) hit (the ball) forcefully from a position near the net so that it moves downward into the opposite court. American Football fling (the ball) forcefully to the ground, typically in celebration of a touchdown or victory.