"liquid kitchen refuse fed to pigs," 1550s, from swill (v.).
swill (v.)
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.
权威例句
1. Swill the car with clear water.
用清水冲洗汽车.
2. We heard the swill of flood waters.
我们听到洪水的冲击声.
3. It is a good vaccine, particularly in pigs fed on swill.