She was a 'pearl' among swine.
methods of raising 'swine'
He's a filthy 'swine'.
(..) to protect the boy? ... He possesses no measurable talent, his arrogance rivals even that of his father and he seems to relish in his fame... - My father was a great man! - Your father was a swine! Drink it, it will contain the curse to your hand, for the time being. - It will spread, Albus. (..)2011 Harry Potter and the Deathly Hallows: Part 2