Hold your egg-xuberance, Foo. My amazing brain tells me that we haven't seen the last of them yet.

Egghead, (Vincent Price)

9 seconds sound clip from Batman (1966) - The Yegg Foes in Gotham (S2E14) TV Series.

You can hear this line at 00:08:40 in the Blu-ray version of the movie.

Quote context

[...]

- If you so much as show your masks around here again, I'll have you both egg-xecuted.

- This is the saddest day of my young life, Batman.

- What will be, will be.

- Goodbye, Gotham City. You were my kind of town.

- If Batman and Robin ever come back to Gotham City they'll be shot on sight. Ain't that great?

- Hold your egg-xuberance, Foo. My amazing brain tells me that we haven't seen the last of them yet.

- We gotta move fast, Robin. The longer Egghead is in control of Gotham City, the more chaos will erupt.

- What will we do? We're barred from it.

- This is one time when Bruce Wayne and Dick Grayson can do more good than Batman and Robin.

- Egghead said the city charter is back in its resting place.

[...]