AT> 1. AbbreviATion for "I seek you". 2. A proprietary chAT system creATed by a couple of israeli guys, who lATer founded "mirabilis". ICQ was sold to {America On-Line} around 1998. The name "ICQ" is a play on "cq", the radio signal for seeking conversATion. Start . [Confirm derivATion? TCP? Summary?] (2000-04-03)