ICE
n.— «So all you do is create a special entry in your mobile phone’s addressbook which is marked “ICE.” Under that entry provide the details of the person you want contacted in an emergency. If you’re not sure, create multiple entries such as ICE1, ICE2, etc.» —“Using ICE to identify casualties” by Tony Dennis Inquirer (U.K.) July 11, 2005. (source: Double-Tongued Dictionary)