handlebar (n.)youdaoicibaDictYouDict[handlebar 词源字典]
also handle-bar, 1867 in reference to bicycles, from handle (n.) + bar (n.1). Handlebar mustache is from 1932, American English, from similarity of shape; the comparison, if not the phrase, dates to at least 1911.[handlebar etymology, handlebar origin, 英语词源]