Yahoo! Slurp looking for strange pages on my site

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Yahoo! Slurp seems to be randomly searching for what look like Chinese
words or names as URI parameters on random pages on my site. For
example: - - [19/Oct/2007:13:33:22 -0400] "GET /?ChangChuChu HTTP/
1.0" 301 332 "-" "Mozilla/5.0 (compatible; Yahoo! Slurp

Anyone have any clue why they would be looking for these odd
parameters? Is there some convention that adding such a parameter to a
URI gets you an alternate language version or something?

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