Is there any fixed expression meaning spending a lot of time and visiting a lot of shops?
Solution 1:
A person who would show such behaviour could be called a shopaholic. "Shopaholic" is also an adjective. Thus you can use it to devise personal locutions that will involve specifically the concept you refer to. I don't know for this concept of any verbal locution or single word verbal form that would be defined in a dictionary.
Examples
- she goes on shopaholic bouts, going on shopaholic bouts
- she indulges daily in shopaholic buying , indulging daily in shopaholic buying