In internet slang, "bbkf" typically stands for "be back later, k?" It's a casual way for someone to let others know that they will return to the conversation or online activity shortly. The abbreviation combines the informal tone of "bb" (be back) with "kf" (okay, fine). However, meanings can vary based on context, so it's always good to consider the conversation.
Baseball Box Kick Face bbkf: boob bee kiddy face
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
disconnected
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
"Bo Bo kitty f*ck" - jay and silent bob
NTH stands for nothing in internet slang.