The obtrusive strand of hair which emerges from a females chin. Wirey in nature, thick and often frowned upon. Most commonly used by wives to rub on the skin of their husbands. The spike is often placed in a cut for the pleasure of pain when one is alone.
Husband: "Ouch, stop rubbing your spikes on my chest!"

"Ahh, I love it when I put my spike in my cut"
by Timeofyearagain March 28, 2019
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Spike from Notting Hill.
by Scott Scruton February 4, 2003
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A male at the peak of his sexuality, I.E. verility.
by Joe Bellestrari October 21, 2003
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When you're banging a chick an slip out, then "accidentally" slip it in her ass while re-inserting!
That crazy bitch was was goin so buck-wild, she almost broke my dick! So I retaliated by spiking her!!!! OR.... Sorry babe, didn't mean to spike ya, but I got carried away!!!!
by JOKES14 June 28, 2011
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to spike is to hit a high point, like the spike on an earthquake seismograph it stands out (up) against the general ups and downs of the daily grind. To peak, reach a peak.
Hey, that party really spiked!
by Karl Yurangu September 24, 2007
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To hammer nails into a tree trunk, as an ecological activist would, to protect the tree from being felled by loggers.
The eco warrior spiked 150 trees today.
by Kerb November 27, 2004
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