One who idles in a chat room all day constantly saying "ROFL."
<Person> My kid just took his first step!
<D0WN3R> ROFL
<person> What is so funny?
<D0WN3R> ROFL
One who idles in a chat room all day constantly saying 'LMAO'.
<+D0WN3R> lmao
One who idles in a chat room all day constantly saying 'LOL'.
<D0WN3R> lol