The Mind Eraser ( a.k.a. Brain Eraser) is a party drink combining equal amount of vodka and the coffee liqueur Kahlúa with soda water. There are tons of versions for this drink. The rule to fully get the effects is to drink it through a straw in one shot. The Mind Eraser goes down so nicely that you’ll probably have another one. At that point, you’ll experience a head rush and understand how this cocktail got his name.