UFO unfinished object. Projects you have started but have set aside for a while. I have tons
DD Dear or Darling Daughter, DS dear son, DH dear Husband Sil, sister or son-in-law, DGD darling grand daughter, DGS dear grand son etc
HST Half square triangles
D9P Disappearing nine patch. A pattern many of them have made
There are a billion more. There is a website somewhere that defines what all these are but I don't know where it is.
LOL laugh out loud
ROFL rolling on floor laughing
LMAO Laughing my A-- off
Hope this helps a little