What is "mumble-jumble"

Mumble-Jumble is a word game that was copyrighted in 1986 by Albert A. Lemieux currently of Lutherville, Maryland. This parlor game is recommended for ages 10 and older and can be played by two to six players or teams. The game is played in rounds where players score points (represented by plastic chips) by finding the word in the jumbled letters of their opponents’ word trays. The game ends when a player does the following:

1. Accumulates at least 15 chips;
2. Declares a Bet-for-the-Win round;
3. Calls ‘stop’ in a declared Bet-for-the-Win round; and
4. Correctly un-jumbles an acceptable word in each of the opponents’ trays.