what does a scary face mean on facebook?

[Candelette]

If you go to your notifications, and any notifications e.g: (name)____ has posted something on your wall. If you click the blue high lighted word it refers you to a link which is the scary face picture. If someone posted, wrote on your wall don't click the blue highlighted word! To be more safe, just go directly to your wall and check your wall if there is anything. If there is nothing on your wall, that person didn't post, that means that it is a spam. Actually you can delete it and disable the application so that this app can't access to your notifications again.