a quick blurt of frustration on the keyboard. due to f and d both being on the home row, it comes out quickly, to effectively insert your frustration in 4 letters. ffdf does not stand for anything, however, the power of these 4 letters is great.
NerdSuckingAtCounterStrike: lol im gunna pwn u!
spik3``: shut up bitch.
*spik3`` just blew up the n00bs head!*
Nerd: GOD DAMMIT NO! YOU FUCKER GOD FFDF I HATE YOU!!!