CostHo 

(noun): Word used to describe female employees of Costco that are flirtatious and physically attractive. CostHos usually wear tight jeans and work at the check-out stand. It is estimated that 62% of CostHos have sandy blonde hair and are aged between 30-44 years old. A select few CostHos had previous occupations as strippers.

I need to go shopping at Costco.

Wait, don't go before 2:00 PM because the CostHos aren't working until the afternoon.

Hey, let's go to Costco and eat free samples and look at CostHos.

CostHo by tgrbld April 4, 2015

Costcodian

The act of purchasing or consuming more than is needed.

They had to find a larger place to live because of their costcodian lifestyle.

Costcodian by Wishbone1000 December 20, 2014

Costco berry ice cream

What you get at the food counter at Costco. Very very yummy yummy scrumptious and enlightening.

"Dad can I have some Costco berry ice cream?"
"Well I suppose since we're already here..."
"YAAYYY THANKS DAD"
"I love you son"
"I love you too dad"
"Wake up"
"Aw man another dream with my dad. But at least I got some Costco berry ice cream"

Costco berry ice cream by Aim For North May 15, 2022

costco effect

Over purchasing because the price per unit is too attractive to pass up.

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.

costco effect by aretegroup March 30, 2015

Costconaut 

Slang term for someone who bravely ventures deep into the inner spaces of the Costco Universe in the middle of the COVID-19 Pandemic.

Dad is our designated Costconaut and we appreciate his willingness to go!

Costconaut by Dr Bunnygirl May 7, 2020

CosThot 

The Cosplayer equivalent of a THOT.

a THOT that thinks they can make money by cosplaying a character that pleases the anime/nerd community. but in reality, only doing it for the popularity and money by half-assing different cosplay , giving no effort at all, but expecting asspats and recognition (E.g: only lewd cosplay or wearing a bikini and a wig saying "this is me Cosplaying _____!!!!")

"Hey who is that costhot that sexualize a child?"

"oh, that's momokun"

CosThot by cosThot101 May 30, 2018

Costco Dogging 

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.

Yo bro I dare you to go Costco dogging, last I heard William was stuck in the Costco for weeks!

Costco Dogging by CostcoDogOfficial April 22, 2019