Here are some examples of foods that are typically described as tangy:
* Fruits: Lemons, limes, grapefruit, cranberries
* Dairy: Sour cream, yogurt, buttermilk
* Sauces: Mustard, vinegar-based dressings, hot sauce
* Pickles: Dill pickles, bread and butter pickles
* Cheese: Goat cheese, blue cheese
"Tangy" is often used to describe the taste of something that is fermented or pickled, as these processes often produce acids that contribute to the tangy flavor.