(noun): To have controversial, objectionable, defamatory, or derogatory material on the internet under his or her real name. This may be self-inflicted, created by a vindictive person, or the unfortunate result of a Google twin. A Google scar may be discovered when ego-surfing. A Google scar will result in a Google burn in some cases.
My ex just gave me a Google scar on his blog. What a douchebag!