Top Definition
The feeling of accomplishment you have after going to Costco. It has led to way too many messed up dinners, sports games, and camping trips.
ex. Stay away from Matt's house tonight, he's on a Costco High and decided to cook french style with the pounds of cheese and fresh fruit he bought at Costco.
#bjjump #costcolow #ughh #froyo #costcoproblems
by angrycostcoers July 05, 2012
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