Jawbreaker

A Jawbreaker is a type of hard confectionery. The synonym gobstopper derives from 'gob', which is slang in Britain and Ireland for mouth.

Jawbreakers have been sold in traditional sweet shops for at least a century, often sold by weight from jars. As jawbreakers dissolve very slowly, they last a very long time in the mouth, which is a major factor in their enduring popularity with children. Larger ones can take days or even weeks to fully dissolve.