Strange search string in logs

Can't find an explanation...

[travelin cat]

In my logs, I noticed a search string that brought the visitor to one of the less visited pages on my site. I've seen this a number of times and each one goes to a different page, the string is:

http://www.google.com/search?q=[KEYWORD]&ie=utf-8&oe=utf-8&num=100

Any idea how the visitor could have reached my widget page without the word widget in the string? And what's with the [KEYWORD]?

[Brett_Tabke]

I would bet that it is a bot spiting out a bogus referral.

[trinorthlighting]

Yes, I agree, it looks like something a bot would do. Check the IP to see where its coming from. If someone is hiding a query like that they might be looking to hack your site.