litterbug (n.)youdaoicibaDictYouDict[litterbug 词源字典]
1947, from litter + bug (n.). According to Mario Pei ("The Story of Language," Lippincott, 1949) "coined by the New York subways on the analogy of 'jitterbug' ...."[litterbug etymology, litterbug origin, 英语词源]