What does the grinch have in his smile?

Also, I didn’t want to see termites in the Grinch’s smile. That was gross.

Don’t you remember the song … He’s got TERMITES IN HIS SMILE.

The Grinch has Termites in his smile!  Its also part of the song… “You’re a vile one, Mr Grinch. You have termites in your smile”