jem·my /ˈdʒemi/ noun (plural jemmies) British EnglishBrE, jimmy (plural jimmies) American EnglishAmE [countableC] TZa short strong metal bar used especially by thieves to break open locked doors, windows etc 〔尤指窃贼用来撬开门窗等的〕金属撬棍 —jemmy verb [transitiveT]