Thimblefuls are a unit of measurement used to measure small amounts of liquid. They are equal to about one teaspoon or two tablespoons, and are often used in recipes. The term THIMBLEFULS can be broken down into two four-letter words: SIPS and NIPS. SIPS refers to taking small SIPS of a beverage, while NIPS refers to taking small nips of a beverage. Together, these two words form the term THIMBLEFULS, which is used to measure small amounts of liquid.