from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Slang Very excited or agitated, especially from taking a stimulant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. high on drugs or stimulants.
- adj. broken, imperfect, especially when followed by 'up'. (See jacked up)
- adj. strong and/or muscled.
- v. Simple past tense and past participle of jack. (stole)
from The Century Dictionary and Cyclopedia
Sorry, no etymologies found.