If you mean slang as in internet slang, then it means "Certified Old Fart".
YAF means in internet slang your a f*ck
SOS or soz as it is more commonly used is the internet slang for sorry
it means *am*
In internet slang it usually means "No strings attached."
MOO is internet slang for "My Own Opinion"
Not right now.
Love And Kisses
NTH stands for nothing in internet slang.
Broadcast - from Blackberry Messenger
"Bend Over Whore"
It means "Bad As Designed".