gland canyon 

The valley between a woman's breasts, more commonly known as cleavage

Her pendant was comfortably nestled at the north entrance to the gland canyon.

gland canyon by Schteve March 19, 2005

Grand Canyoning

The action of licking a butt hole on a rim to rim journey.

"I spent all night grand canyoning that hoe Brenna."

Grand Canyoning by butthole hiker July 13, 2012

Grand Canyoning

After titfucking a busty girl, cum between her tits unexpectedly and let the cum flow down between her tits.
Her tits represent the scenery, and the flow of cum represent river Colorado.

The phrase Grand Canyoning is a verb.

Example:
-"...I heard you had a 'special night' last night.What did you do..."
-"...I Grand Canyoned on her.She was surprised but it was amazing..."

Grand Canyoning by DepressedRetarded May 31, 2017

grand canyoning

when you convince someone that they've done something or gone somewhere (like the grand canyon) by fabricating a memory of it by telling them things you've done that you've told them about before

an example of grand canyoning:

person 1: dude do you remember when we went on a trip to florida?
person 2: no i've never been to florida
p1: remember? the lady at that gas station said they didn't know what our state was (happened to p1, but not p2)
p2: oh yeahhhhhh!! i remember that now (was told that story by p1 years ago)
p1: see, we went to florida
p2: yea i remember

grand canyoning by cheese demon June 3, 2019

Grand canyoned 

The way that Robert Wesley jones destroyed Sophie’s pussy.

Reggie grand canyoned that pussy last night

Grand canyoned by Queefmister October 17, 2022

Glandcanyon 

Glandcanyon, a rather large spot on a woman,usually beginnng but not limited to the genital area larger than normal, but still thoroughly enjoyable. Sought after by experienced men that can appreciate not having to " "train" the lady,when they'ed only be sleeping together.

Wholly shit! She saved the best for last,when I finally got off her pants,I was amazed by her glandcanyon,were talkin' Large and in charge!

Glandcanyon by Peteandbird February 22, 2023

glandcanyon extreme 

Gland canyon extreme is referring to a " often busy" or having multple children,woman's vagina. To say it's small would be lyin'

Now that I'm matured,I find a womens vagina more appealing if it's a glandcanyon extreme,I won't tolerate much else.

glandcanyon extreme by Peteandbird April 2, 2023