What does :-{) stand for?

:-{) stands for "Smile with moustache"

How to abbreviate "Smile with moustache"?

"Smile with moustache" can be abbreviated as :-{)

What is the meaning of :-{) abbreviation?

The meaning of :-{) abbreviation is "Smile with moustache"

What does :-{) mean?

:-{) as abbreviation means "Smile with moustache"