(n.) One who shops.

Brillat-Savarin Lucullus board-and-roomer boarder bon vivant browser buyer cannibal carnivore connoisseur of food customer agent diner diner-out eater eater-out employer emptor enjoyer epicure feeder flesh-eater fruitarian gastronome glutton gourmand gourmet grain-eater graminivore granivore herbivore high liver hungry mouth lactovegetarian luncher man-eater marketer meat-eater mouth omnivore omophagist pantophagist phytophage picnicker plant-eater predacean purchaser purchasing agent shopper trencherman user vegetarian vendee window-shopper