Asklemmy

Teletubbyzurückwinker.

Someone that waves back at the Teletubbies.

Very Belgian: He doesn't have all his fries in the same bag / Il n'a pas toutes ses frites dans le même sachet

Meaning that he's/she's dumb or confused :D

"Κλάσε μου τα αρχίδια" which literally stands for "fart my balls" in Greek.

It's a way of telling someone to go fuck himself.

Triangeljosti.

The Jostiband is a Dutch orchestra for people with a developmental disability, mainly people with down syndrome.

A [triangle](https://en.wikipedia.org/wiki/Triangle_(musical_instrument)) , or triangel in Dutch, is possibly the simplest instrument you can think of.

So calling someone a ‘triangeljosti’ is basically comparing them to someone who plays the simplest possible instrument in a band for developmentally disabled people.

Du hast doch nicht alle Tassen im Schrank - German, you don't have all your cups in the drawer.

Telling someone he is stupid via comparison to cups. Why? Who knows.

In Bulgaria we have the very creative insult „You’re as sharp as an edge on a round table”, which I find pretty amusing

"I piss in your mother's death"

Alternatively, "May Stalin fuck you"

And yes, I live in Eastern Europe.

Yiddish is not my native language but I think this one is so good it absolutely deserves a mention:

All of your teeth shall fall out except one that gives you a massive toothache.

In Quebec French, people sometimes say of someone who's not particularly bright:

"His mom rocked him/her too close to the wall."

It's just so... vivid and random.

Portuguese is full of these, but how about vai pra casa do caralho.

Which roughly translates to "go to the dick's home", basically another way of saying "go fuck yourself", but even more vulgar somehow.

German: "Dich soll der Blitz beim Scheißen treffen" - Lightning shall strike you while you're taking a shit

Best insult ever, imo.

Salame

Yes that's right, it means salami and in spanish it's used to call someone an idiot. Soft insult, but I use it, and saying so and so is a salami in english would only get me weird looks.