- What's with the briefcase?
- It's a love memento.

8 seconds sound clip from the Dumb and Dumber movie soundboard.

You can hear this line at 00:12:09.779 in the Blu-ray version of the movie.

Quote context

[...]

- Man! You are one pathetic loser. No offense.

- No. None taken.

- You know what really chaffs my ass, though? I spent my life's savings turning my van into a dog.

- Hi, Petey!

- The alarm alone cost me 200.

- Hey! Chicks love it.

- It's a shaggin' wagon.

- What's with the briefcase?

- It's a love memento.

- The most beautiful woman alive, I drove her to the airport. Sparks flew, emotions ran high.

- She actually talked to me, man.

- Get outta here. Oh, yeah yeah.

- Tractor beam... Sucked me right in.

- Anyway, she left this in the terminal and flew to Aspen and out of my life.

[...]