Translation of scumbag in Spanish

I've met the owner of Dessarmile, who has also already written you (after you came back from Thailand). However, he does not speak Spanish and therefore I do not think that they can be good friends.
The words will mostly be easy. I would prefer full sentences and not just short clauses with the article, the noun and an adverb/adjective. Do you think you could do 1000 sentences per working day? This way we could finish quickly.
Learning a new language is never easy, especially the first foreign language. Unfortunately, it's a bit difficult for me as well. But the vocabulary exercises here are really good.