skank (n.)youdaoicibaDictYouDict[skank 词源字典]
"unattractive woman," 1965, perhaps from skag in this sense (1920s), which is of unknown origin. Verbal meaning "dance to reggae music" is from 1976, probably not the same word but also of unknown origin. Related: Skanking.[skank etymology, skank origin, 英语词源]