One who participates in moshing or moshpit-related activities; combination or "moshpit retard"; brute who insists on going to concerts on beating on small children who don't know any better
Jay: Dude, what happened to you?
Zach: Dude, I was at the Misfits show, and those moshtards hit me in the eye.
A mosher that doesn't deserve the 're' of 'retard'. Mostly used by moshers friendlyly reffering to themselves.
'Haahaa Moshtard!' 'Yess I'm Such A Moshtard' 'She's a mosher and a tard... Moshtard!'