Bat Dad is the... well he's the dad. Who dresses like a bat. And then raises a family. And posts things to Vine. While talking like Christian Bale. It's all very simple, really.
Since you (probably) don't have time to sift through his excellent Vines, here's a compilation from YouTube. Props to the interrogation room scene reference from The Dark Knight at the 1:08 mark. And be sure to check back in 20 years when E! News does an hour-long special: "The Children of Bat Dad. Where Are They Now?"