to be very excited or nervous, especially because you have taken an illegal drug
to increase the price, rate, or number of something by a large amount
to put an illegal drug into your body using a needle
to refuse to obey instructions
to use a jack to lift and support a heavy object, especially a car
I try to interpret these things as signs of something bigger, but I can't jack up their meanings.
jacks up
jacking up
jacked up
There is no origin for this phrasal verb
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