from wicked-pee-dia:
Frick and Frack were two Swiss skaters who came to the U.S. and joined the original Ice Follies show as comedy ice skaters. "Frick" was Werner Groebli, born April 21, 1915, in Basel, Switzerland. "Frack" was Hansreudi (Hans) R. Mauch, May 4, 1919, in Basel, Switzerland. Frick and Frack were known for skating in Alpine Lederhosen and performing eccentric tricks on ice, including the "cantilever spread-eagle," created by Groebli, and Mauch's "rubber legs" twisting and bending his legs while skating in a spread eagle position.
sorry, but i gotta wonder about a guy who wants to name cats after a couple of male skaters.
Aw geez, don't get technical. I didn't know their history. To me Frick & Frack just means like inseparable friends, you see one--you see the other too. e.g. Mutt & Jeff, the Bobbsie twins, etc. But, hey.....they're your cats. -_-