in stone 

Like saying facts or TRUTH except way more official

Person one: Pizza is the perfect balance of all life’s greatest attributes.

Person two: Yessss. That’s in stone!

in stone by ShoulderBoulder December 16, 2019

set in stone 

Colloquial description of an item (document, schedule, contract, etc.) that cannot be altered without great effort (and possibly some destructiveness) for one reason or another.

Probably derived from how the ten commandments (Exodus 22:* in your bible) were produced on stone tablets, as it requires effort to modify a document that is etched into stone.

See also set in jello for a good opposite.

Once you sign the contract, the terms are set in stone.

set in stone by Dennis The Tiger April 6, 2005

not carved in stone 

not having permanent consequences

Calm down. It's not the end of the world. Your career choice is not carved in stone because you didn't make it when you were in third grade.

not carved in stone by Light Joker December 14, 2005

lonely carved in stone

the understanding or realization of being lonely till death.

mother: hey son! Your older brother has a girlfriend he’s happy! Where’s yours ?
me: lonely carved in stone

lonely carved in stone by a teens life April 19, 2018

Set in stone 

(pertaining to holidays) A promise that absolutely will not be broken, unless it was only made verbally by management, in which case it turns out the fuckers are guaranteed to change it.

You know those holiday dates? You can take them as set in stone.

... about those holidays you booked... you're going to have to come in those days, I don't give a shit what you think.

Set in stone by ochrann January 10, 2020

cut in stone 

A person who has a very chiseled and defined body

Woah Deborah can you believe how cut in stone mike is?

cut in stone by Heksofh July 27, 2017

The ol' Sword in the Stone 

Whilst recieving a handjob, the girl grabs the cock skin really hard and yanks upwards forcefully every few seconds, like is the guy trying to pull the sword from the stone in Excalibur.

oh nancy gave me the ol' sword in the stone last night.
I kept moaning in agony but she thought it was pleasure
so she kept pullinh harder and harder
now my cock looks like a slinky

The ol' Sword in the Stone by D.J. Dildo March 15, 2010