cart before the horse (to put)

cart before the horse (to put)  {n. phr.},  {informal}
Things in wrong order; something backwards or mixed up. — An overused expression. Usually used with "put" but sometimes with "get" or "have".
When the salesman wanted money for goods he hadn't delivered, I told him he was putting the cart before the horse.
To get married first and then get a job is getting the cart before the horse.
Categories: informal noun