In poker, the lower of two kicker cards. Coined in opposition to "rockette", which was already poker slang for "high kicker card." The Radio City Music Hall Rockettes are known for their high-kicking dance style, while Irish dancers in Riverdance are not. Coined by Dave Foley in an episode of the Bravo television show "Celebrity Poker Showdown".
It was heads-up, and the board came an ace and four rags. He showed Ace King, I had Ace Queen, so his rockette beat my riverdancer.