Skip to main content

Knife in Mattress

A scenario, often playful and sexual, in which a person forcefully stabs a knife into a mattress and uses it as a sex toy, sometimes as part of an act or roleplay, while their partner or praises them.

The term is heavily inspired by a scene in the Book "Lights out" by Navessa Allen in which a character proposes the idea of riding a knife in a mattress.
Eammon i want you to grab a knife and stab it into the mattress and watch me ride it as you praise me.

Knife in Mattress
by Freaky Def August 10, 2025
mugGet the Knife in Mattress mug.

Knife

Wasn't the guns because there was a mass shooter and it wasn't attention because he fled and intended not to get caught.
Hym "And getting rid of the guns only stops the people who can afford security from getting stabbed by someone with a Knife. The selfish pundit class wants themselves to be safe while they hire security for themselves and then the rest of you can just get killed in a mass stabbing or something. And he had guns. The guns did nothing to save him there. It's not the culture because he's culture is being a solipsistic incest cultists who believe the sane people are the ones who think they are immortal and that a magical reality man made the the boss of everyone by proxy. So no. The cause of the murder is whatever the cause of the murder happened to be and NOT WHATEVER SELF-INDULGENT BULLSHIT THE INFLUENCER FILTH HAS DECIDED TO MAKE UP IN RESPONSE TO THE MURDER OF ONE OF THEIR OWN. One side says it's one thing. The other side says it something else. They can't both be right. All I know this that MY thing persists. And that's all that matters."
by Hym Iam September 12, 2025
mugGet the Knife mug.
Related Words

gun-knife

v: to simutaneously stab and shoot someone
I gun-knifed him when he made fun of me
by bobbybob09773498274 April 7, 2008
mugGet the gun-knife mug.

Cocoa Knife

Nickname of the penis when entering the butt.
We had a few drinks and I fed her the cocoa knife.
by EF Tedenfred May 18, 2010
mugGet the Cocoa Knife mug.

Persuasion Knife

A device, or figure of speech, used with NPC* inaction (can be in real life and virtual) that is used to sway said NPC into giving unto one's way. Can be used in a threatening way, or friendly, mostly threating.

*Non Character Player (or not you)
Person 1:Today I had to use my Persuasion Knife to get my lazy brother to mow the lawn today

Person 2:"You pulled a knife on him?
Person 1:No, a rock. It works like a knife.
by SafetyPants April 26, 2011
mugGet the Persuasion Knife mug.

to knife-jack

( named after Jack the Ripper : to take hostage, kidnap, threaten, rape, or sodomize someone at knife point
Nobody knows to this day if Jack the RIpper tried to knife-jack his victims or if he used more subtle forms of psychological manipulation to get them into his hostel room before killing them.
by Sexydimma May 27, 2013
mugGet the to knife-jack mug.

to knife-jack

( named after Jack the Ripper : to take hostage, kidnap, threaten, rape, or sodomize someone at knife point
Nobody knows to this day if Jack the RIpper tried to knife-jack his victims or if he used more subtle forms of psychological manipulation on them before killing them.
by Sexydimma December 8, 2014
mugGet the to knife-jack mug.

Share this definition

Sign in to vote

We'll email you a link to sign in instantly.

Or

Check your email

We sent a link to

Open your email