swill (n.)youdaoicibaDictYouDict[swill 词源字典]
"liquid kitchen refuse fed to pigs," 1550s, from swill (v.).[swill etymology, swill origin, 英语词源]
swill (v.)youdaoicibaDictYouDict
Old English swilian, swillan "to wash out, gargle," probably from Proto-Germanic *swil-, related to the root of swallow (v.). Meaning "drink greedily" is from 1530s. Related: Swilled; swilling.