a large jar or pail for collecting household slop for disposal.
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Origin of slop jar
First recorded in 1850–55
Words nearby slop jar
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for slop jar
Then I dropped the vinaigrette in the slop-jar and jumped down from the wash-stand.The Story of Dago|Annie Fellows-Johnston