Anti-Hotlinking in plain English, please?

[pc]

Pagan I have this in my .htaccess and works great but you need to include so many url's as you need to enable hotlinking.

## DISABLE HOTLINKING
RewriteEngine on
# Options +FollowSymlinks
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?lezzietown.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?rearentrylovers.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?eroticove.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?whatever.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?whatever.net/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?whatever.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?whatever.com/.*$ [NC]
RewriteRule \.(gif|jpg|jpeg|png|js|css)$ - [F]

I hope this helps