The name of Mr. Peabody's time machine is WABAC (pronounced "Way-back"). It resembles a typical computer of the time, which could take up an entire room of the office building. Such computers often had names like ENIAC or UNIVAC, with AC standing for Automatic Computer. Show director Gerard Baldwin stated that WABAC was intended to parody UNIVAC specifically. (In Mr. Peabody & Sherman (2014), WABAC's full name was retconned as Wavelength Acceleration Bi-directional Asynchronous Controller.)