The symbol in text messaging for "between you and me" is often represented as "FYI" or "BTW" to indicate the information is being shared confidentially between the two parties.
In text messaging, "NK" typically stands for "no kidding."
BTW means By The Way in text language
No comment!
Cf
LAO
"Uff" is a term commonly used in text messaging to express frustration, annoyance, or exasperation.
By the way
will call back
Oh boy
good to see you
It means hate