Scum | Mean of scum in English Dictionary

/ˈskʌm/

• Noun
• a layer of something unpleasant or unwanted that forms on top of a liquid
1. Boil the chicken and use a spoon to remove any scum that floats to the surface.
2. pond scum [=a layer of algae on top of a pond]
• a dishonest, unkind, or unpleasant person
1. Ignore him; he's scum.
2. They are the scum of the earth. [=the worst people on the earth]
3. He's a complete scum.