if, however, you are someone who pronounces the word butter in a way that is close to "budder,"
you are making a flap. It is represented by Irl.
This sound is produced by the tongue tip tapping the alveolar ridge briefly.
Many American English speakers have a tendency to "flap" and [d] consonants between vowels with the result that the pairs latter/ladder,
metal medal and writer/rider do not have distinct middle conson. ants.
Those young students who were told about the importance of Plato in class and wrote it in their notes as playdough were clearly victims of a misinterpreted flap.