Arctic Knife Fight 

When you take a shit then you freeze it, you sharpen the end and the first person to draw blood gets to penetrate the other person.

I love arctic knife fights

Arctic Knife Fight by Arctic Knife Fight May 17, 2014

lesbian knife fight

Two lesbians scissoring while on their periods

My girlfriend and I had a lesbian knife fight last night- it was epic

lesbian knife fight by {ACR} August 21, 2018

San Francisco Knife Fight 

A contest in which the two contestants masturbate while holding hands and keeping continuous eye contact. The person who finishes first wins.

Bored at the bus station, my friend and I decided to take part in a little game of San Francisco Knife Fighting. I can't believe he finished without blinking once!

San Francisco Knife Fight by Sir Hamm's June 9, 2017

mexican knife fight 

A knife fight, usually between two individuals, particularly unique in the fact that they have duct taped their hands together in a hand-shaking gesture while holding the knives in their unbound hand. Usually conducted to settle a dispute over food, money, drugs, property, or prostitutes.

Jim and Mike got in a huge arguement last night. Being the gentlemen that they are, they amicably agreed to settle their dispute via a mexican knife fight to the death.

mexican knife fight by Brian Salts January 13, 2009

don't bring a gun to a knife fight 

To bring a knife to a gun fight; to be inadequately prepared for something.
Likewise, bringing a gun to a knife fight,
To overreact and overthink Petty situations

You don't bring a gun to a knife fight as it isn't a serious matter. it isn't a matter of your life and death or your money and legacy.
He brought a knife to a gun fight that day when he was watching everyone else's presentations

don't bring a gun to a knife fight by InformationLibrary December 2, 2017

Suprise Knife Fight

A Knife Fight brought on by suprise, usually amongst people who all possess knives and who are bored.

Ian: ...
Chris: ...
Jim : ...
Ian : ...Suprise knife fight! *whips out knife*
Chris: Suprise knife fight!? *whips out knife*
Jim : Suprise knife fight!? *whips out knife*

Suprise Knife Fight by Noz Dormuu December 19, 2008

Portuguese Knife Fight 

Something, especially referring to an event, that is casually violent or chaotically aggressive; everyone involved has a reckless, devil-may-care attitude towards the (often serious or important) problem or topic at hand.

Popularised by the band Cage The Elephant, with their song 'Portuguese Knife Fight'.

Zach Casualrapeford: Hey Brock, you seen Barron around?
Brock Chesterwood: Yeah bro, it turns out Ashley reported him to the principal about him raping Stacey. He said he was going to have a word with her and her boyfriend, but he looked like he was gonna get into a Portuguese knife fight instead.
Zach Casualrapeford: I hope he sorts that mess out before his parents find out.

Portuguese Knife Fight by AussieManDiaz December 7, 2017