What is the definition of a tongue twister?

A tongue twister is a phrase or sentence that is difficult to articulate quickly and repeatedly due to the close proximity or repetition of similar sounds.

Here are some key elements of a tongue twister:

* Difficult articulation: The sounds are chosen to be hard to pronounce quickly, leading to mispronunciations and stumbling.

* Repetition of sounds: This is usually the main reason for the difficulty, causing the tongue to get tangled up.

* Humorous effect: Tongue twisters are often used for amusement and to test the speaker's dexterity with language.

Examples:

* She sells seashells by the seashore.

* Peter Piper picked a peck of pickled peppers.

* Betty Botter bought some butter, but the butter Betty Botter bought was bitter.