The vines. They're laffy taffy. They're attracted to whatever makes them laugh.
7 seconds sound clip from the Wreck-It Ralph movie soundboard.
You can hear this line at 00:47:06 in the Blu-ray version of the movie.
Quote context
[...]
- That's why I have to get Ralph home. Or the same thing's gonna happen to my game.
- Quicksand? I'll hop out and grab you one of those vines.
- I can't hop. I'm hop-less. This is hopeless! We're going to drown here.
- The vines. They're laffy taffy. They're attracted to whatever makes them laugh.
- That's not funny enough. Harder!
- Look, you're a nice guy. I can't...
- No, ma'am! The arcade is depending on us. Now do your duty. That's an ord...
[...]