rocket fuel
/ˈrɒkɪt ˌfjuːəl/noun
1Fuel for a rocket engine; specifically one that reacts with an oxidizer.
- Fuel and oxidizer collectively are propellants..
2In extended use: something which has a stimulating or energizing effect; specifically a strong alcoholic drink.
3 Slang (originally US ). The veterinary analgesic and anaesthetic phencyclidine, used as a recreational drug.
Origin
1930s; earliest use found in Popular Science Monthly. From rocket + fuel.