A place for cheap people to buy unnecessarily large amounts of a certain item. Now a slang term for really big things.
by GerardMyLove May 22, 2005
A warehouse where all the fobs shop. Merchandise are usually bulked in large amounts. There is an abundant amount of samples where you can note that a large percentage are not serious shoppers and just "sample".
by Kevin Liang June 23, 2005
A person usally of male desect that is such a large douche bag that he would only be sold at costco. You would most likely see this person around the chico, ca area with rather large sideburns and or a mohawk.
by Travis LaFever August 19, 2006
a person who is like family but not blood related, someone who you are so close with you basically are family, a family friend.. it saves alot of time instead of having to explain that your not really realated but just very close
your moms best freind from high school you see every weekend is like your costco aunt or if you have someone you see alot around your age but your not that close they are your costco cousin you would say "this weekend im going to me my costco cousin" instead of "this weekend im going to visit this girl whos like my cousin but not really were just very close"
by NickiAsh December 3, 2006
Noun - A place where stingy people go and buy their stuff in bulk. Most people end up throwing most of the stuff away anyways. Costco is usually really expensive compared to other places such as Wal-Mart or e-Bay.
A 42" inch plasma is on sale at costco for $1,799! Wait a second, the same TV is going for $1,499 @ wal-mart!
by igetfreecable March 19, 2005
Aw, Mike why did you buy three 48-ounce bottles of ketchup? The Costco effect got you. The second two are going to expire before you get to them.
by aretegroup March 28, 2015
Costco Dogging is the act of going to Costco and buying a large $1.50 hotdog and proceeding to throw away the hot dog and sliding your penis into the remaining bun. The participant must fill the urethra with every condiment available and is not allowed to leave Costco until someone sucks all of the condiments out. The act of Costco Dogging typically takes a week or more.
by CostcoDogOfficial April 22, 2019