sour tooth

• sour-tooth

By analogy with sweet tooth.

sour tooth (plural sour tooths)

1. (idiomatic, only in singular, uncommon) A liking for foods that are sour.
   • 1997 April 14, “Deep in a Pickle on the Upper West Side”, in New York, volume 30, number 13, page 26:

     Robin and Jay Brown weren't the kind of kids to be caught with their hands in the cookie jar — they each had a sour (sometimes a half-sour) tooth, and pilfered pickles instead of desserts.

   • 2014, Tricia Cornell, The Minnesota Farmers Market Cookbook: A Guide to Selecting and Preparing the Best Local Produce with Seasonal Recipes from Chefs and Farmers, Voyageur Press, →ISBN, page 59:

     Use about an equal weight of sugar (or less, if you've got a sour tooth), top with your favorite crumble or sweet biscuit topping and bake

   • 2015 November 16, Kaivallya Dasu, “Boulder Clearing”, in Enchantress of Elektra, Partridge Publishing India, →ISBN, unnumbered page:

     Fruits are sweet! I hate anything sweet! I have a sour tooth.

2. (idiomatic, countable, rare) Someone with a liking for sour foods.
   • 1942, Journal of the Royal New Zealand Institute of Horticulture:

     Some "sour-tooths" prefer a sweet, non-acid fruit to an acid non-sweet one one while others do not.

• spicy tooth
• sweet tooth
• salty tooth