How about a Batman
squirt gun?
The Big Bang Theory Season 7, Episode 2
But that doesn't prove
I know Batman.
The Big Bang Theory Season 4, Episode 7
We're here to see Koothrappali,
not kill Batman.
The Big Bang Theory Season 2, Episode 4
Well, that's just Batman.
The Big Bang Theory Season 9, Episode 21
Batman and Robin.
The Big Bang Theory Season 6, Episode 4