spit sock
n.— «A 26-year-old Castle Rock man who was arrested on suspicion of DUI March 13 had to be restrained with a spit sock and ankle bracelets after he became irate with an officer while being arrested.…He also spat on the officer and kicked the security gate in the patrol car with his feet.» —“Blotter: Drunk man berates, spits on officer” by Joseph Kirchmer YourHub.com: Castle Rock (Colorado) Mar. 25, 2008. (source: Double-Tongued Dictionary)