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Definition scum in British English

scum noun

[uncountable] noun
/skʌm/
1

a layer of a dirty or unpleasant substance that forms on the surface of a liquid

Example

A thick layer of black scum lay on the canal water.

Synonyms and related words
2

an insulting word for someone who you think is very unpleasant

Example

The people who do these dreadful things are scum.

Synonyms and related words
Definition scum in British English