FUD
Fear, Uncertainty and Doubt
FURTB
Full Up Ready To Burst - describing hard drive.
FWIW
For What It’s Worth
FYA
For Your Amusement
FYI
For Your Information
G
Grin, or Giggle
GA
Go Ahead
GAL
Get A Life
GD&R
Grinning, Ducking and Running
GD&RF
Grinning, Ducking, and Running Fast.
GD&WVVF
Grinning, Ducking, and Walking Very, Very Fast
GDW
Grin, Duck and Weave.
GF
Girl Friend.
GFN
Gone For Now.
GFR
Grim File Reaper.
GIWIST Gee, I Wish I’d Said That