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!
Master bater is a person who mastered the art of masturbation.
Kyle is a master bater
Bake a potato, cut a hole in it, fuck it, jizz in it, then cut it open like a baked potato. Serve it to someone and say the jizz is freshly melted butter.
Bro, I just gave a tater-bater to my sister.