1. excited, energized, or enthusiastic
Usage: informal; often followed by 'up'
2. amplified or made louder using an amplifier
Usage: technical; music/audio context

Examples

• The team was amped up before the championship game.
• She felt amped after drinking three cups of coffee.
• The crowd got amped when the band took the stage.
• He was amped about his new job opportunity.
• The amped guitar solo was the highlight of the concert.
• Kids were amped and ready to go to the amusement park.