Here's why:
* Tongue twisters focus on sound: They are designed to be challenging to pronounce, using repetition and alliteration to create a playful and sometimes humorous effect.
* Poetry can be about anything: While a tongue twister can be a poem, it's not a genre in itself. It could be incorporated into a variety of poetic forms like:
* Nursery rhymes: "Peter Piper picked a peck of pickled peppers" is a classic tongue twister used in nursery rhymes.
* Free verse: A poet could use tongue twisters to create a specific effect within a free verse poem.
* Limerick: A limerick could use a tongue twister in its lines for added humor.
Essentially, a tongue twister is a tool that can be used in many different kinds of poetry.