Grand Canyon

The act of taking a shit so wide that your asshole is left open, and appears to be a gorge like the Grand Canyon

I ate a ton of fiber this week, so when I shit today, I Grand Canyon'd myself.

by juiceappleton January 05, 2017

Grand Canyon

A huge pussy

Let’s say you will have a Grand Canyon after this

by Jackparker November 02, 2017

Grand canyon

Mona's fitta

"Bror haru sett Mona elr hone cok kattig"
> Nej bror hon har Grand Canyon fitta

by Grandcanyonexplorer69 May 15, 2020

Grand Slam

When four or more of your friends hook up with the same girl at different times. Can only be completed if each person goes all the way (i.e. hitting a home run).

Dude, me, Bobby, Ned, and Tom hit a Grand Slam with Jennie.

by YaMumz September 10, 2014

Grand Slam

When you full send for a coveted 4 days in a row

“Ready to for the long weekend?”
“Yeah, I’m going full send for a grand slam!”

by fullsend101 September 28, 2018

Grand Slam

In Counter-Strike, a Grand Slam is the act of clutching one versus five to win a game / series.

I hit my first ever Grand Slam the other day, you wouldn't believe it! A one-versus-five at 14-15, what a game!

by walterP_tv February 15, 2018

Grand Slam

Term is used to describe the event of when you wake up with major morning wood the size of a Denny's plate full of breakfast awesomeness.

Eric: I woke up on my girlfriend's mom's couch to her whole family staring at my grand slam! Needless to say, they were quite impressed.

by RiddyTX June 14, 2015