Clabbers

Clabbers is a game played by tournament Scrabble players for fun, or occasionally at Scrabble variant tournaments. Its rules are identical to that of Scrabble except that the letters in a word do not need to be placed in the correct order. If a word is challenged, the player who played the word must then name an acceptable word that anagrams to the tiles played.

For example, a player wanting to maximize his score for the word FYTTE (variant of fit, a section of a poem) might choose to play it hooking the Y onto the end of the existing word AEGRZ (GAZER), making the word AGRYZE (a variant of agrise "shudder". Both AGRYZE and AGRISE are only legal in play outside of North America/Israel) and spelling it ETYTF in order to place the F on a premium square.