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jack - definition and synonyms


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verb jack pronunciation in British English /dʒæk/
Word Forms
present tense
present participlejacking
past tensejacked
past participlejacked

phrasal verbs

jack around

Word Forms
present tense
I/you/we/theyjack around
he/she/itjacks around
present participlejacking around
past tensejacked around
past participlejacked around
American informal
  1. 2
    [transitive]jack someone around to treat someone badly because you are not clear or honest with them

jack in

Word Forms
present tense
I/you/we/theyjack in
he/she/itjacks in
present participlejacking in
past tensejacked in
past participlejacked in
  1. 1
    [transitive] British to stop doing something, especially a job or a course of study
    Did you know that Jenna’s jacked in her college course?
    Synonyms and related words
    Synonyms and related words

jack off

Word Forms
present tense
I/you/we/theyjack off
he/she/itjacks off
present participlejacking off
past tensejacked off
past participlejacked off
American impolite

jack up

Word Forms
present tense
I/you/we/theyjack up
he/she/itjacks up
present participlejacking up
past tensejacked up
past participlejacked up
  1. 3
    [intransitive/transitive] informal to put an illegal drug into your body using a needle
    Synonyms and related words
    1. a.
      be jacked up mainly American informal to be very excited or nervous, especially because you have taken an illegal drug
      Synonyms and related words
  2. 4
    [intransitive] Australian informal to refuse to obey instructions


… a feeling of pleasure you get from spending time doing what you want and not worrying about what other people are doing or saying

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Open Dictionary

brain fade

a temporary inability to think clearly or remember information

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