"Laughing quietly to myself." A more accurate representation of the human response to funny things seen on the interweb.

When people type lol, rarely are they laughing aloud for the whole world to hear, but merely smiling and laughing quietly to themselves.

'Laughing quietly to myself'. An honest alternative to lol. Popularized by US comedian Demetri Martin.

A term coined by Demetri Martin a stand up comedian. Its his form of LOL since he never has laughed out loud at his computer, he just LQTM or laughs quietly to myself.

an alternate version of typing that you are laughing, such aslol or rofl. Stands for 'laugh quietly to myself'

lqtm: Laugh Quietly To Myself; Instant Messenging lingo substituted for "lol."
A more truthful "lol."

No one actually laughs out loud when they say lol.
It's a filler.
Use "lqtm" to be more truthful to your responsee.

v. laughing quietly to myself.

if the statement wasn't that funny, instead of saying lol, you say lqtm

Not well known but it stands for "Lesbians quietly tickling monkeys"