hummer (n.)youdaoicibaDictYouDict[hummer 词源字典]
c. 1600, agent noun from hum (v.). Meaning "energetic person or thing" is 1680s; that of "excellent person or thing" is slang from 1907. As short for Humvee, attested from 1983.[hummer etymology, hummer origin, 英语词源]