jacked up on (something)(redirected from jacked up on)
jacked up on (something)
Made extremely excited, energetic, jumpy, or enthusiastic by something. In college, I used to spend many a night jacked up on caffeine writing terms papers or studying for exams at the last minute. If you want to see craziness, trying spending an afternoon with a bunch of kids jacked up on cake, candy, and soda.