Grand Canyon 

Big expandable pussy that can fit numerous dicks inside.
Stretched pussy

Lady: He is small
Man: Maybe the ball park was too big, even a 747 (jetplane) looks small in the Grand Canyon

Grand Canyon by tl December 25, 2003

Grand Canyon 

A steep-sided gorge carved by the Colorado River in the State of Arizona.

Arizona is the Grand Canyon State.

The most breathtaking view you have ever seen!

Grand Canyon by Chizhi Worm April 28, 2009

Grand Canyon 

One of Arizona's most popular tourist site.

Can be also used as a roast to someone with a huge gap between their teeth.

Hey John.....I just went to the grand canyon in AZ, and it was amazing.

It is almost as if babyface has the grand canyon in his mouth.

Grand Canyon by Mr. Cluckerz November 18, 2016

Grand canyon 

Mother Natures Vagina

the water in the grand canyon is gods jizz

Grand canyon by SuperAwesomeSauce August 17, 2011

grand canyon 

a vagina that is loose and dry

a female version of the male "chode"( a penis that is wider than it is long)

Bitch: Marty you have a chode.
Marty: Oh ya, Bitch, you have a grand canyon.

grand canyon by the vagina cutter January 18, 2009

Grand Canyon 

The act of spreading a girl's ass cheeks or vaginal lips, then ejaculating at the top and watching the cum drip down the crack, mimicking the river that flows in the Grand Canyon.

She was begging me to cum on her, so I spread those cheeks and gave her the Grand Canyon.

Grand Canyon by recklessxx November 15, 2011

Grand Canyon 

While having sex with a girl, grab a rolling pin or other large shaped object and ream her twat. once you pull the object out and her gash is gaping, yell into her twat lips "Hello" and wait for the echo.

Her gaping gash echoed like the Grand Canyon!

Grand Canyon by DRJ12341234 October 13, 2011