Derived from the combination of the words "whiskey" and "Listerine" (not the liquids). When someone has super potent alcohol on their breath. They don't need to speak for one to smell it, but when they do, the stench is amplified. Usually the culprit is trying to mask or cover the smell while at work, in church, at a family function, or any other normally dry event. Use of the word is good for any part of the day, but especially applicable between 6 am and noon.
Patty: "Hey, I wonder what time the guy started drinking? It's ten in the morning."
Josh: "Don't know, but he definitely rinsed with whiskerine."