Anagrams
From Omnictionary
Anagrams are words that are created from rearranging the letters of another word. This is used as a plot device in the novel An Abundance of Katherines.
Examples
Clint Eastwood is an anagram of Old West Action
A telephone girl is an anagram of Repeating "Hello"
The Omnictionary user AGrammarianEnsues has an anagramable username.
