[Noumenon]

I’ve always like “slumgullion”.

[nickcarraway]

Do you have a recipe?

[cloudmountain]

I’ve always like “slumgullion”.

That's a good'un.

Another of my favorites, after ASSHOLE, is "JERK."
Both are non-gender, non-age, non-language, etc., but convey the feeling of disgust.
"What a JERK!" Ain't that just perfect for some people?