Classic Mochrie. Also even better in context - "Meow" was a running joke for that particular epsiode:
Fun fact - for the US Whose Line they would tape for 3-4 hours and get 3-4 episodes out of it, versus the UK version where they would film for 2-3 hours and get ONE episode out of it. After the stopped filming the US version they went back to the discarded footage and managed to wring another 1-2 episodes out of each studio taping, which made up the later seasons of the show. It *did* show that they weren't using the first-cut material though, but it was a cheap way of creating mid-season filler for ABC without having to pay the actors any more. I wonder how long they were going when "Meow" came along.