Not Right Now
If you mean slang as in internet slang, then it means "Certified Old Fart".
YAF means in internet slang your a f*ck
NRN was created on 1965-01-23.
SOS or soz as it is more commonly used is the internet slang for sorry
I think it means "No Reply Neccesary".
disconnected
it means *am*
In internet slang it usually means "No strings attached."
MOO is internet slang for "My Own Opinion"
Love And Kisses
NTH stands for nothing in internet slang.