Have a sweet tooth

Origin

Imagine a time when sugar was a rare luxury, its taste a delight so potent it might make one's very teeth ache with pleasure. The phrase "sweet tooth" emerged in English as early as the 16th century, though it became widespread later, brilliantly personifying this craving. It's as if a specific tooth, or indeed all of them, harbored an insatiable desire for sugary treats, transforming a physical part of the mouth into the very seat of one's deepest culinary longings. This charmingly direct metaphor elegantly captures that irresistible pull toward cakes, candies, and all things sugary.