A Backronym ...
...is a reverse version of an acronym. Acronyms like M.A.D.D. (Mothers against drunk driving) are made with a meaning already behind them, but backronyms are not. Any group of letters can be made into a backronym, although its a bit harder for them to make sense...
DDAF = Dads Dodging Animal Farts?
How to Play
Step 1: Make a backronym out of the letters posted by the user above you.
Step 2: Add some letters to the end of your post for the next person. (Please make them CAPS so its easy to tell).
Try to avoid profanity. If a word is particularly bad, I'll just sneak in and edit it to a really weird word >:)
Bacronyms don't have to make sense, but its more fun to try and make the words connected in some way.
Try not to make them too long or too short. 3 - 6 letters is fine (besides, you're just choosing the letters).
I'll post some as an example below to start off. Have fun!