Verb
The word is derived from slag
Profit, Empire, Industry. What was a dead lake, a few poisoned rivers, a few slagged hillsides? Priorities, that was what it was about. Priorities and Progress. Ian McDonald
I've been slagged off completely by the art world. Tracey Emin
He's slagged off the other candidates just as much as they have slagged off each other. Source: Internet