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1. To waste or pass time idly, as by doing nothing or engaging in foolish behavior. Stop jacking around and start cleaning this place up—my parents will be home soon! The final product is so shoddy. It's like the development team spent the whole time jacking around instead of actually working on it!
2. To tinker or fiddle with something. He's been out jacking around with that engine for days now, but I know he'll never get it working again. My dad liked to jack around with old electronics that he picked up at flea markets.
3. To tease someone, often by trying to convince them of something untrue. In this usage, a noun or pronoun can be used between "jack" and "around." Quit jacking me around, I know there isn't a Hollywood director calling me right now. The older members of staff like to jack around the new team members when they join the company.
4. To waste someone's time, often by being evasive, indirect, or insincere. In this usage, a noun or pronoun can be used between "jack" and "around." I don't understand why they didn't just tell me "no" right away. Instead, they jacked me around for three weeks when I could have been looking for other jobs. The company is being accused of jacking around customers who are requesting refunds for faulty products.
1. noun, rude slang A thoroughly incompetent, foolish, bumbling, or useless person. In this usage, the term is sometimes hyphenated or spelled as one word. I can't believe that jack off got elected to the Senate! Get off the road before you kill someone, jack-off!
2. verb, vulgar slang To masturbate or bring someone to orgasm, especially a male.
3. verb, rude slang To waste or pass time idly or by doing nothing or engaging in foolish behavior. Would you quit jackin' off and help me move this sofa out to the truck?
1. To increase sharply. Please stop jacking up the volume on the TV. I can barely hear myself think.
2. To raise something through the use of a jack, a simple machine used to lift things. We'll need to jack up the car before we can change this tire.
3. To stimulate, excite, or motivate, often but not always through the use of drugs. In this usage, a noun or pronoun is sometimes used between "jack" and "up." By the way he was flitting around, you could tell the guy was jacked up on something. This soundtrack jacks me up so much when I'm working out.
4. To inflict damage upon, physically or otherwise. In this usage, a noun or pronoun is sometimes used between "jack" and "up." Yikes, that car wash really jacked up your car's exterior. I'm not going to lie, that horror movie jacked me up for weeks.
1. slang Extremely excited, enthusiastic, or motivated. Everyone at the company is really jacked to show the world what we've been working on for the last three years. The coach got the team jacked up ahead of the big championship game.
2. slang Having very large and well-defined muscles. Tom used to be a skinny little dude, but he spent the summer getting jacked. With my simple workout routine, you won't need expensive supplements or endless time at the gym to be totally jacked up!
See also: jacked
slang Having very large and well-defined muscles. (Hyphenated if used before a noun.) Tom used to be a skinny little dude, but he spent the summer getting jacked out. With my simple workout routine, you won't need expensive supplements or endless time at the gym to be totally jacked out! The film is filled with jacked-out dudes and buxom ladies.
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.
jack aroundand jerk around
sl. to waste time. Stop jacking around and get some work done! The kids spend most of the day jerking around.
jack someone aroundand jerk someone around
Sl. to give someone a difficult time; to harass someone. Come on! Stop jacking me around! Max started jerking Lefty around, and it looked as if there was going to be trouble. You jack around everyone you know!
jack someone up
1. Sl. to excite or stimulate someone, possibly with drugs. Tom jacked up his buddy by talking to him. Tom jacked up Fred with a lot of encouragement.
2. Sl. to motivate someone; to stimulate someone to do something. The mail is late again today. We'll have to jack those people up at the post office. I guess I'll have to jack up the carpenter again to repair my stairs.
jack something up
1. Lit. to raise something up on a mechanical lifting device. Now I have to jack the car up, so I can change the tire. Please jack up the car.
2. Fig. to raise the price of something. The store keeps jacking prices up. The grocery store jacked up the prices again last night.
Sl. angry; annoyed. Boy was that old guy jacked out at you. Yup, he was jacked all right.
Raise or increase, as in The cartel is jacking up oil prices again. This term alludes to the literal meaning of jack up, that is, "hoist with a jack." [Colloquial; c. 1900]
v. Vulgar Slang
To masturbate. Used chiefly of males.
1. To lift something, especially a vehicle, using a jack: We jacked up the car to change the tire. I hurt my arm when I jacked the van up.
2. To raise some price or value by increments: Because of the drought, the stores jacked up the price of lettuce. That candidate is going to jack taxes up after the election.
3. To stimulate someone with or as if with a drug: My friend jacked me up on caffeine the night before exams. The coach jacked up the team with a pep talk before the game.
See beat off
in. to waste time; to mess around. (Akin to jack off.) Stop jacking around and get busy.
mod. angry; annoyed. Boy was that old guy jacked out at you.
See jacked out
1. and jacked mod. excited. I was so jacked I almost passed out. Don was really jacked up about the election.
2. mod. arrested. (Underworld.) What time did Sam get himself jacked up?
3. mod. upset; stressed. I was really jacked up by the bad news.
4. mod. high on drugs. He’s jacked up, and he may have ODed.
See jacked up