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A form of internet communcation where 2 or more people talk to each other in real-time without going through a browser chatroom. A few of the most common instant messengers are ICQ, AIM and MSN.
by Amantis April 05, 2005
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Jun 13 Word of the Day
No Bull Shit, and old hacker acronym which is usually used to signify that the talk will be serious.
User: I need to talk to you, NBS.
User2: ESAD, Noob.
by Heko July 17, 2004
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A way of communication without having to text/call or hang out with that person. If it weren't for Instant Messenger I wouldn't have as many friends as I DO(: Its pretty freaking awesome. Even though you might not even talk to half of your contacts... you still got more people online. Great for having HILARIOUS group discussions with all your cool friends. If I walk away from my computer for a second I first check to see who got online while I was gone... Very addictive. But totally awesome(: ***warning: may lead to loss of social skills***
Instant Messenger converstation:

Julia: You missed it. Me, Mclovin, Marco, Mikey, Emily, and ew David had a big group convo(:

Rachel: haha. Sounds funny! Wish I would have been there minus the david part. lol!
by pprplanesandhearts March 20, 2009
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A two-way pager that weights 6 pounds and costs $500 or more. You can talk to more people at a time using instant messenger than you can with a two-way. You can also type, access the Internet, and play video games in a more humane manner.

For those who would rather have radiation splashing onto their face rather than zapping their genitalia, instant messenger is the way to go.
I use instant messenger when I'm at my day job, but I can only use a two-way at my, uh..., night job.
by handle187 November 07, 2003
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