Best Insult Ever?

I really like insults that people don't understand at first but then three weeks later the person who was insulted says, "Hey! Wait a minute". That's a particularly English thing to do. One I heard at work was someone saying a co-worker was ill and another person saying, "Oh dear! I do hope it's nothing trivial" with mock concern. It's obviously a joke because you wouldn't say you hope someone's illness is serious, but then do they like the person enough for it to be a triple meaning or only a double meaning?

The Spanish do nice insults which are completely the other way around and are immediately obvious, like, "I'm going to have sex with the ghost of your dead mother and then defecate upon her, the Pope, and your God".

The Russians have odd, but interesting insults, like, "May you be electrocuted from urinating near an electrical circuit while drunk on cheap vodka".

But it's down to the Irish, who are a very lyrical and poetic people, to come up with my favourite. It has such beautiful imagery and layering that I can't help but love it. They would say:

May the curse of Mary Malone and her nine blind illegitimate children chase you so far over the hills of Damnation that the Lord himself can't find you with a telescope.