Spike poker
1) Nail (Mark a card, often with a fingernail. Also called
spur.).
2) In (usually) hold 'em, catch on the board precisely the card
needed to match your hand, usually the third to your pair, sometimes
another of the same rank; always followed by the card in question.
"I was betting my two pair all the way, and he spiked another
deuce on the river."
3) An ace.