Leaving your irc client connected to a server and sitting in channels even if you are not at the computer. This allows a group of users to stay in contact even if they are not active all the time.

Many misunderstand this concept and think idling means to stare at an inactive channel for hours on end but it just means leaving your client connected even if you aren't there or are doing other things.

Note: things like the following would not be possible if both users were not idling.
9:56am <user1> so user2 how are the girls?
1:12pm <user2> they are doing great! i just got home.
1:12pm <user1> thats good. tell them hi for me :)
by Louva-Deus March 09, 2004
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Often used on IM sites,it means to be inactive
Yahoo said Bob had been idle for 10min and 46sec.
by Chrizzy March 14, 2006
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i dont like,
saying you dont like something or someone
man idl u! so lmtfa!

idl grape juice, its nasty
by c_tina April 27, 2008
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I Did Laughing. Gramatically incorrect phrase, originally coined as a result of immense financial confusion, wearing the same clothing for months on end, abnormal urge to temporarily deform one's own body parts in an attempt to alter self-image; such as the biceps, excessive arcade usage, immense sexual disorientation, and chronic masturbation.
BALLINNNN" IDL

Sorry guyss, but I make $14/hr.

Scrappin is just the intro, finishing you off is the beginning. I DID LAUGHING

Because I live my life $14 dollars at a time.

$14/hr makes me sensitive.
by Dru Chung March 21, 2007
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doing nothing - at least nothing productive. For recration or because there is just nothing to do.
by gizmo771 February 25, 2006
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A characteristic whereby someone is lazy and does nothing (or very little), often including the things they like to do. This is likely due to them not being bothered or finding it extremely hard to motivate themselves.
She was idle and rarely revised. However, her intelligence ensured that this fault went unnoticed in exam marks and instead she found herself gaining many compliments for her supposed diligence.
by A.person.who.seems.to.exist March 07, 2020
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A really lousy computer programming language, commonly used for Remote Sensing. This language commonly pisses off everyone who is exposed to it.
Okay class, today we are going to learn IDL.

...everyone gets up and walks out.

...class? Class!?!? What, do I smell or something?
by idlisacrockofcrap March 15, 2011
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