He's under the influence of cataphrenic. A drug which reverses all the normal moral and ethical standards and causes a person to become the exact opposite of what he was before.
13 seconds sound clip from Batman (1966) - That Darn Catwoman (S2E40) TV Series.
You can hear this line at 00:06:11 in the Blu-ray version of the movie.
Quote context
[...]
- Never thought the day would come when Robin would be my sycophant... did you?
- Oh, dear, is there anything left to believe in?
- Good.
- Go help the boys blow the safe.
- What have you done to him? You... You... You...
- So now he's just as pro-crime as formerly he was anti?
- Exactly.
- Now, my next move is to put Batman in the same condition.
- Stick with me, sweetheart. We're going places together.
- As soon as we get enough cash, we'll lay low across the border.
- Forget it. All this is working capital. We got a much bigger job to pull.
[...]