What does :L stand for?

:L stands for "LOL! Smiley"

How to abbreviate "LOL! Smiley"?

"LOL! Smiley" can be abbreviated as :L

What is the meaning of :L abbreviation?

The meaning of :L abbreviation is "LOL! Smiley"

What does :L mean?

:L as abbreviation means "LOL! Smiley"