What does (:-) stand for?

(:-) stands for "Smiling with helmet"

How to abbreviate "Smiling with helmet"?

"Smiling with helmet" can be abbreviated as (:-)

What is the meaning of (:-) abbreviation?

The meaning of (:-) abbreviation is "Smiling with helmet"

What does (:-) mean?

(:-) as abbreviation means "Smiling with helmet"