scum : Idioms & Phrases
pond scum
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noun free-floating freshwater green algae
WordNet
pond-scum parasite
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noun an aquatic fungus of genus Synchytriaceae that is parasitic on pond scum
WordNet
scum bag
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noun a person who is deemed to be despicable or contemptible
git; crumb; stinker; so-and-so; rat; rotter; puke; dirty dog; bum; skunk; stinkpot; lowlife.
- only a rotter would do that
- kill the rat
- throw the bum out
- you cowardly little pukes!
- the British call a contemptible person a `git'