A person who wastes chances and time. Someone who does not give a shit. Someone you feel like giving up on because of their behaviour. They waste your time and their time. Someone who is unable to commit or focus. Some who consistently gets out of their minds on drink or drugs. Someone who does not care about anyone or anything.
A person on Youtube who registers a username that could have been the name of a band's official channel, a professional reviewer, or simply just a cool username, and never uses the account he registered.
The official channel of the band "Zebrahead" was one of the victims of name wasting. Someone registered "zebrahead" and never used the account. So now the channel is under the name "thebizman22".
"What the fuck. Someone took my awesome username! And the only video they have uploaded was an LQ webcam upload that happened 3 years ago! Fucking name waster!"