I could do a pretty good voice imitation of Mark Levin- The ‘Grate’ One.
Grate— To cause to make a harsh grinding or rasping sound through friction: grated teeth in anger.
To irritate or annoy persistently:
Possibly the most unpleasant voice on radio. I stopped listening to him years ago, when I liked him, because his voice was unlistenable and he screamed and was so rude to the callers.