1DFD [transitive] to secretly add strong alcohol or a drug to someone's drink or food
2 [intransitive] if the number or rate of something spikes, it increases quickly and by a large amount :
New telephone orders have spiked in the last two years.
New telephone orders have spiked in the last two years.3 [transitive] to push a sharp tool or object into something
4 [transitive] to prevent someone from saying something or printing something in a newspaper :
a clumsy attempt to spike rumours of a cabinet split
a clumsy attempt to spike rumours of a cabinet split5
a) to powerfully throw an American football down on the ground to celebrate a touchdown
spike the ball
American Englishb) [intransitive and transitive] to powerfully hit a volleyball down over the net

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