You have termites in your smile.
6 seconds sound clip from the How the Grinch Stole Christmas (2000) movie soundboard.
You can hear this line at 01:04:36 in the Blu-ray version of the movie.
Quote context
[...]
- I asked for three-quarters, not five-eighths. Stay focused!
- You know, if you asked the Who's Who of Whoville...
- Air bag's a little slow... But that's what these tests are for!
- You're a vile one, Mr. Grinch.
- You have termites in your smile.
- You have all the tender sweetness of a seasick crocodile, Mr. Grinch.
- Given the choice between you I'd take the seasick crocodile.
- Fat boy should be finishing up anytime now.
- Talk about a recluse. He only comes out once a year, and he never catches any flak for it!
- Probably lives up there to avoid the taxes.
[...]