stayed too long at the fair

If you stayed too long at the fair this is a figure of speech which means you stayed so long at a certain place that it soon became less exciting and dazzling and instead made you feel bored and unsatisfied. The phrase refers to a fair as in a street fair, county fair or carnival in which is starts off very exciting and keeps you on your toes. However, if you stay too long at the far, everything becomes overly normal and simple and you arent as excited about it any more.