Tuck in, before the food goes cold.

Fluorite is the main natural resource of Thailand.

If someone undermines you at work you might say they were white-anting you.

On the Homologies and Notation of the Teeth of Mammalia, by W[illiam] H[enry] Flower, F.R.S. […] The classification and special homologies of the teeth of the heterodont mammals was next discussed.