Top Definition
In a relationship. Used especially to mean claims of being in a relationship on an online social networking web site such as Facebook.
"I just noticed on Facebook that Emma is IAR now."

"James claims to be IAR, but I think he has a Canadian girlfriend."
by Michael in Cambridge November 02, 2007
Abbreviation for "In a round..."
Airborne Ribbon
* IAR: 10 seconds in a Parachute
--(Battlefield 2)
by Bankai December 17, 2005
In augmented reality. Opposed to irl, in real life.
Hey John, you want to go play laser tag iar?
by Nize426 April 30, 2015
two inches inside kevin bacon's anus
i finally got to third base, he let me touch his iar
by koolaidkid April 08, 2004
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