get medieval UK /ˌɡɛt ˌmɛd.iˈiː.vəl/US /ˌɡɛt mɪdˈi.vəl/ verb1 •(US, informal) To become sadistically torturous, especially due to vengeful spite.So don't be vain and don't be whiny Or else, my brother, I might have to get medieval on your heinie — 1996 formsgot medieval · gotten medieval · getting medieval · gets medieval
