Over in another thread yesterday a fellow from Sweden described a real forehead-slapping groaner of a situation. I asked him if there was a Swedish expression for when you slap your forehead after realizing a big mistake, and he said they would probably just use the English word "facepalm". So now I'm curious: are there other languages that do have colorful or unique words or idiomatic expressions that mean something similar to "facepalm"? I'd love to have a few choice examples in my vocabulary. So, nu?