Definitions by Archangel MS

WFDFF 

Chatspeak acronym. Translation: "What Friends Do For Friends." Usually used as an alternative to "you're welcome," with the implied meaning that no thanks are necessary.

{Over IM}
Tim: Thanks for sending me that link, man. You're a life saver.
Bob: WFDFF. :)

WFDFF by Archangel MS March 19, 2008