Tummies refers to the informal plural form of the word "tummy," which is a colloquial term for the stomach or abdomen. It is often used to refer to the region where one feels hunger or experiences digestive sensations. The clue you provided suggests that "tummies" rhymes with "yummies," indicating it may be used in relation to food or eating.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Rhyming destinations for yummies. Explanations are generated by AI and may be inaccurate.