Definition of jack verb from the Oxford Advanced American Dictionary

 

jack

 verb
verb
NAmE//dʒæk//
 
Verb Forms present simple I / you / we / they jack
 
he / she / it jacks
 
past simple jacked
 
-ing form jacking
 
 
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Phrasal Verbsjack somebody aroundjack in/into somethingjack somethingup
See the Oxford Advanced Learner's Dictionary entry: jack