Jacked up is a colloquial term that refers to something that is either physically lifted, or experiencing some sort of dysfunction or disarray. If you're looking to expand your vocabulary and use more precise language, there are various synonyms that can be used in place of "jacked up." For instance, you could use words like lifted, elevated, hoisted, raised, or lifted up to describe something that has been physically raised up. To describe something that is experiencing disarray or dysfunction, you could use words like chaotic, disorganized, or in disarray, among others. By using these and other synonyms, you can add variety and nuance to your writing or conversation.