by daboss43 August 11, 2012

The state of an automobile when changing one's own tire, probably on the side of the road with a jack.
by Rev. Sully June 12, 2007

To jack-up is a gymrat term for working to improve a specific muscel or set of muscels, especially women who want to firm-up their butts.
by Jim Inman August 17, 2006

by Mumbl3s8p August 4, 2019

Danielle: "Did you here that Allie got jacked up at the party last night?!"
Eliana: "OMG!!! What a slut!"
Eliana: "OMG!!! What a slut!"
by dickonfire July 29, 2016

by Christia January 31, 2004

'Jacking up' is the state in which a person/hobo/fugitive finds himself somehow getting involved with injecting heroin, a really bad drug, also a really stupid way of ingesting a drug. 'Jacking up' is sometimes referred to as 'stabbin' da veins'
Jalentine posted a photo of himself 'jacking up' which means he is a real badboy and he also got a tattoo and now he is fell over because he did too much heroin.
by MC BeeStealer September 19, 2016
