1. not working properly or as intended.
2. having used a large quantity of speed, cocaine, or other amphetamine.
3. cut or lacerated by means of a make-shift knife or blade. see SKIV
4. In generally poor or injured condition.

This is a phrase largely equivilent to fucked up or screwed up. It roughly means "in a state of disarray" and is commonly used in the phrase "to jack someone/something up". In some cases, the meaning may be slightly altered by the fact that to get "jacked" can mean to be struck or injured.

(Adjective )informally used to describe something that is not quite right.

To get absolutely annhilated in a football hit.

Refers to pricing of items for sale. Generally implies that the marked price is higher than the item is worth for marketing reasons (to get a higher discounted sale price), or raised due to high demand (gouge price).

high on some kind of upper, coke, speed, ecstacy, etc.

The state of an automobile when changing one's own tire, probably on the side of the road with a jack.