jailbreak
n.— «The iPhone/iTouch Dev guys have been hard at work for weeks and have finally managed to jailbreak 1.1.1.…So what does this jailbreak mean? Third Party apps run. Kind of. We probably have to recompile many of them for the new frameworks because many of them crash.» —“Announcing a preliminary iPhone 1.1.1 Jailbreak” by Erica Sadun The Unofficial Apple Weblog Oct. 8, 2007. (source: Double-Tongued Dictionary)