Juice is the liquid that comes from fruits or vegetables when they are crushed or squeezed.
In slang, juice can mean:
1. Power or influence ("He's got the juice in this industry")
2. Alcohol ("Let's get some juice for the party")
3. Electricity ("The battery is out of juice")
4. Steroids ("He's on the juice")
5. Something exciting or interesting ("That movie had no juice")