Skip to main content
CostCo has samples everywhere.
CostCo by Kyle,that random guy. December 26, 2017
noun describing someone that is generally over the top, loud, big, larger than life to a point where it can be a little painful
She's nice but she's just a bit Costco - there's always a lot going on.

Just fucking chill dude, why ya gotta be costco all the time?
costco by EG1978 November 7, 2018
A sexual act involving peanut butter, and bird seed.
You pack your butt with a mixture of peanut butter and bird seed and then bend over and hold open your butt cheeks in a place where birds like to go. This allows birds to eat out your ass and feels really good.
Dude I went out to the park yesterday and got a great costco.
costco by William David February 25, 2008
verb: to pay a fat prostitute very little for her services, it's like buying wholesale.
Dude, I think I'm gonna try and costco that big chick on the corner there.
costco by andmoo22 March 23, 2010
Really big and massive (adj)
(the store, costco, sells food and other items in bulk)
"wow dude, that chick is so costco"
"hummers are ridiculously costco"
Costco by melonoftroy June 30, 2009
When a male’s fingers penetrate a female’s genitle area and uses the residual moist substance on his said fingers to give sample to friend and then proceeds to give sample to surrounding subordinates in general area
hey, Bryson just fingered and costcoed his boys on the tailtgate at the concert last night
Costco by SPITNEIN October 12, 2017