What does :-6  stand for?

:-6  stands for "Exhausted, Wiped Out"

How to abbreviate "Exhausted, Wiped Out"?

"Exhausted, Wiped Out" can be abbreviated as :-6 

What is the meaning of :-6  abbreviation?

The meaning of :-6  abbreviation is "Exhausted, Wiped Out"

What does :-6  mean?

:-6  as abbreviation means "Exhausted, Wiped Out"