shopping whore 

one who spends way too much time and money at the mall and/or other retail stores

My friend Jen is a total shopping whore, she's at the mall all the fuckin' time!!!

shopping whore by fashionho December 9, 2003

whore shopping 

when you go shopping looking like a whore/slut and/or you go shopping for whorish things like thongs and lacy "things"

Cat:Hey Claire wanna go whore shopping this weekend?
Claire:Sure I need some new thongs

whore shopping by Celestey O. December 12, 2007