1. A person so vile and low-down dirty that the term scum bag just doesn't fit any longer. A person like this would steal from their own sister to buy drugs or call the police on his own brother because he is more successful.
2. The offspring of a complete scumbag. This is the reason why certain people should not have babies.
3. The diminutive form of "scumbag."
"That guy that stole from the old lady is such a scumberino."
"That little scumberino just spit on me and his dad laughed! What kind of people are these?"