A fork of Rural Dictionary
Someone who thinks they're in a debate and has something profound to say, but is actually just mentally masturbating.
His point was moot. He is such a master duh bater
"Master duh Bater" -- someone who sounds like they're arguing, stupidly, but really just engaging in mental masturbation.
I thought I was educating a troll online, but it turns out he's a Master duh Bater!