shop till (one) drops
shop till (one) drops
To spend an exorbitant or unrestrained amount of time shopping and buying things. Every weekend my wife shops till she drops. Her credit card bills are enormous! With a huge range of sales and savings across the country, retailers are hoping that consumers will shop till they drop this weekend.
shop till you drop
If you shop till you drop, you do a lot of shopping. I've had to do what any girl does best, shop till I drop.