What is Youtard?
1.
Someone who posts a meaningless video on YouTube.
I'm sending you a link to a 28 second clip I found on YouTube, posted by a YouTard, which has no apparent purpose other than to take up space.
See
2.
Name given to all the idiotic people who post comments on Youtube.
"Vile rage? Rampant racism? Huge neckbeard? Yep, we've got a Youtard on our hands. I wonder what the thinks about the Moon Landing..."
See