Search Engines

spen666

I was looking on the site statistics for my blog yesterday and saw the top search term that led people to the site was
"Under car girl big breasts"

I am rather puzzled as the blog is about my interests, cycling, football and the law.

I have no idea how any search engine could link my blog to those terms.

Anyone understand search engines and could explain to me what the possible link is? and how do I break such a link? I don't want people thinking I am a pervert (even if I am!)