Toothfuls is a word that describes the quantity of something that can be consumed or contained by the mouth or teeth. It is often used in reference to food, particularly those that are small enough to be chewed in one bite. Some synonyms for toothfuls include mouthfuls, bites, nibbles, chews, morsels, scraps, tidbits, and portions. These words are often used interchangeably depending on the context of the sentence. Toothfuls and its synonyms are useful in describing the amount of food or drink someone should consume or the limit of what they can hold in their mouth comfortably.