1 definition by alschpq2rasdjifgqapwy

A layer of impurities that accumulates at the surface of a liquid (especially water or molten metal)

A derogotory phrase to describe someone.
Oh fuck man, I got scum all over my fucking shoes!

That Semuel Grieg is the biggest scum in Western Sydney!
by alschpq2rasdjifgqapwy September 13, 2010
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