Act of drinking a handle bottle of liquor at the first sign of flu or cold symptoms, bringing your blood alcohol level to about .35, and killing any germs present in the human body.
Glen, "man James you looked like shit yesterday, I was sure you were coming down with that nasty flu that's going around."

James, "I was, but I did a Medicinal Bender by drinking a handle of Beam, killed all those germs before I woke up!"
by TuckDCconnect January 6, 2011
Get the Medicinal Bender mug.