Retarded person on the internet who spams you with the entire alphabet, either correct or not, ending it with Z.
It can also refer to people who mis-spell almost every word or every other word and add or replace a letter with Z for no apparent reason. Most of these people can be found on common sites like Myspace, Gaiaonline, Youtube, or any other large site that can show local text by the public.
Most are doing it just to annoy you.
Others are just that stupid.
Today, I was going on Myspace to check my messages when I found the most ridiculous Z-tard that I almost commited genocide.
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