Oh, I get it. It's a joke! That's a great one.
10 seconds sound clip from the Mickey Mouse - The Prince and the Pauper movie soundboard.
You can hear this line at 00:10:15 in the DVD version of the movie.
Quote context
[...]
- Come on, give me that secret handshake, Mick. Go on, put your hand up here. Go on, swing it down.
- Oh, yes. That is me. Mickey Mouse, peasant at large.
- My good man, you must forgive me. I am dreadful with names. Could I have your name?
- What's the matter with the one you got?
- So I see. And my dear man, if there's anything I can do to help, by all means, let me know.
- Oh, I get it. It's a joke! That's a great one.
- Will you look at the time? I really must be going. Ta ta!
- Hey! Hey, come back here. Come back here. Come back!
- Gosh, if my friends could see me now!
- Surely His Highness has not forgotten his royal duties.
[...]