Two of my favorite German idioms are missing, both of which have no short English equivalent. One is "innerer Schweinehund" (lit. inner pig-dog), roughly meaning "the lazy part of oneself". Procrastinating, staying inside when it's raining, taking he car instead of walking... that's all the doing of your "inner pig-dog" :) The other one is "eierlegende Wollmilchsau" (lit. egg-laying wool milk sow), meaning something that a) does and has everything you want and b) doesn't exist (not sure if "unicorn" refers to quite the same).

Im Italian so we have plenty of expressions that roughly translated means something different, however my favourite is french : "Les chiens aboient, la caravane passe" which is a sentence used to mean when an individual stick with his opinion, lead on uncaring of comments. But it means "The dog barked, but the caravan proceeded"

It's so interesting to see that many popular sayings are similiar in very different cultures and languages! Loved it.

What a wonderful place to add something. @BP: bring pack those series where we can add stuff!

My boss taught me the phrase "Tā shìgè huāpíng". In Mandarin, it means "She's a vase." Basically, "She's pretty to look at but offers nothing inside."

My favorite from Greek: "κάτι τρέχει στα γύφτικα" Meaning: "Who cares?/Nobody cares" Literal translation: "There's trouble in the gypsy village!"

A very short one: "Helaas Pindakaas" Language: Dutch Meaning: "Unfortunately" Literal Meaning: "Unfortunately Peanut butter"

My favorite is the Brazilian Portuguese saying of "Puta Que Pariu!" It is an expression to say you are seriously screwed ! But literally it means "the whore gave birth!" Haha

My mother used to scold me and my brother with (Spanish) "Juegos de los manos, son juegos de los marranos" (Literal) " Games of the hands are games of the pigs". Basically, "Quit your horseplay".

Norwegian: Det er ugler i mosen English: There is owls in the moss Means: It’s something strange/suspicious here

A Norwegian phrase "å være i kritthuset" which means to be on someone's good side. Literal translation: to be in the chalk-house

Swedish: Goddag, yxskaft! This literally means 'hello, axe handle' but is used to point out that the response or reaction you got was totally irrelevant.