Just had a look at the thread I was thinking of
http://www.gfy.com/showthread.php?t=...ghlight=fusker
Code:
RewriteEngine on
RewriteCond %{HTTP_REFERER} ^http(s)?://(www\.)?google.com.*$ [NC]
RewriteRule .* www.rhinogirls.com/ [L]
If you do that, it will redirect all google traffic though, so probably not what you want.