I mean as in you order something, and the interpretation of it is so vastly different to expectations...
Sometimes this might be from fucking picky kids unrealistic ordering or just from a local idea that this is what people from your country eat.
My two favourites - a portion of fries on a side plate with a useful portion of cold tinned peas. And a full roast dinner. Pre cooked and straight out of the fridge (not reheated at all). The latter was put on for an official dinner, spectacular. Luckily there was lots of booze and some divine doughnut-y things I completely gorged myself on had a couple of for pudding.