Script (guión): Idioms, ‘nutty as a fruitcake’ or fruitcake for short. Someone referred to as a fruitcake or described as being nutty as a fruitcake is considered crazy or irrational. For example, we consider my uncle Barry to be a bit of a fruitcake as he often goes out in the morning dressed in his pyjamas and dressing gown. He goes to a café for breakfast like this and sometimes he will even go to the supermarket afterwards.