Slipping a Mickey
© 1999, Chris Heller
Slipping a Mickey
Among the dangers of frequenting bars and parties where alcohol is served is the risk of being slipped a Mickey. A Mickey, or Mickey Finn, is generally taken to mean any knockout drug that is secretively placed, or slipped, into someone's alcoholic beverage. This is a bit ironic considering that many people consider alcohol to be something of a knockout drug in itself.
The most important part of this term seems to be the slipping. If you want to just gobble Mickeys all night long, people will generally leave you alone. When you start wanting to slip someone a Mickey, however, you've got trouble.