Synonyms of 'slop'
A little cognac slopped over the edge of the glass.
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something remaining, such as food on a plate, residue, refuse, etc
She scraped the leavings from plates into a bucket.
If a liquid sloshes around or if you slosh it around, it moves around in different directions.
The water sloshed around the bridge.
Thesaurus for slop from the Collins English Thesaurus
If liquid slops from a container or if you slop liquid somewhere , it comes out over the edge of the container, usually accidentally.