Torpedo juice is American slang for an alcoholic beverage, first mixed in World War II, made from pineapple juice and the 180-proof grain alcohol fuel used in United States Navy torpedo motors.
— Wikipedia

The article notes that despite poisonous additives to deter sailors from bleeding the torpedos to get smashed, the enlisted would take the risk and then work out ways to filter out the additives.

Pinkie Pie is just a recent incarnation of an old god.