OUT OF A / THE HAT


Meaning of OUT OF A / THE HAT in English

if sth such as a name is picked out of a/the hat , it is picked at random from a container into which all the names are put, so that each name has an equal chance of being picked, in a competition, etc.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.