Peter Piper is another well-known alliterative tongue twister: "Peter Piper harvested a peck of pickled peppers." The device used to create this effect is called an anagram. When you use an anagram to say something witty, it makes the poem or song all the more fun to hear. An anagram is when you change the letters in a word to make another word. For example, if I changed the letters in the word "pickle" to make another word, that would be "peeler". A person who changes the meaning of words by rearranging their letters is called a word joker. There are many word games played with the aim of creating new meanings for words by changing one letter at a time. For example, there is a game called Hangman where you try to guess a word by removing letters from a crossword grid. Each row, column, and diagonal line of the grid contains a word beginning with the corresponding letter. You can only remove letters that don't change the meaning of the word, so each letter must be used once before it can be removed from the grid. In poetry, writers often use anagrams to create surprise effects when reading their works aloud.