It is the name of my father and his father before me.
10 seconds sound clip from the Donnie Darko movie soundboard.
You can hear this line at 01:20:44 in the Blu-ray version of the movie.
Quote context
[...]
- Why do you wear that stupid bunny suit?
- Why are you wearing that stupid man suit?
- It is the name of my father and his father before me.
- Frank? When's this going to stop?
- You should already know that.
- I want you to watch the movie screen. There's something I want to show you.
- Have you ever seen a portal?
[...]