impale on or pierce with a sharp point

she spiked another oyster

form into or cover with sharp points

his hair was matted and spiked with blood

add alcohol or a drug to contaminate (drink or food) surreptitiously

she bought me an orange juice and spiked it with vodka

(in volleyball) hit (the ball) forcefully from a position near the net so that it moves downward into the opposite court