A "Tooth Stick" is when you are using a flimsy toothpick on your teeth and it suddenly breaks off and leaves part of the toothpick between your teeth.
While in the restaurant Bill used a toothpick on his teeth after dinner only to get it stuck between his teeth. The toothpick broke when he tried unsuccessfully to get it unstuck. His friend across the table laughed and said, "Nice Tooth Stick!"
by Julesheart January 23, 2024