What does :-r stand for?

:-r stands for "Sticking tongue out"

How to abbreviate "Sticking tongue out"?

"Sticking tongue out" can be abbreviated as :-r

What is the meaning of :-r abbreviation?

The meaning of :-r abbreviation is "Sticking tongue out"

What does :-r mean?

:-r as abbreviation means "Sticking tongue out"