"Major munches" refers to an intense craving or desire for food. Synonyms for this phrase include "hunger pangs," "cravings," "voracious appetite," or simply "the munchies." Other more specific synonyms could be "sweet tooth" for a craving for sweets, "carb craving" for a desire for carbohydrates, or "meat craving" for a hankering for protein. Regardless of the specific type of food, major munches can be satisfied by indulging in a favorite snack or meal or by distracting oneself with other activities like exercise or hobbies.