An automobile is a horseless carriage. Many new objects that displace older objects are refereed to initially in reference to the established product. This serv

An automobile is a horseless carriage. Many new objects that displace older objects are refereed to initially in reference to the established product. This serves the same purpose as a toothbrush, so its entirely sensible to refer to in terms of a toothbrush. Calling it a "whizgonger" or some such is neither descriptive or useful for anyone.