15k 

A common term used by Marines (USMC) to refer to something/someone/some unimaginable situation or feat as ridiculous or, lamely speaking, "Bullshit"

"Yo Devildog, I'm getting NJP'd tomorrow!"
"Really! Sorry about that Devil, That military underage drinking law is 15k."

"Damn! This '15 minutes prior' shit is 15k!"

15k by Chattom, E July 5, 2006

15K run 

A life-threatening amount of gay anal sex.

"Holy shit, I just went on a 15K run. I'm sweating and panting so hard right now"

15K run by hunterforthepoon February 13, 2022

.15kchxr0 

A good editor and a sweet charli fanpage and cares for all fandome

.15kchxr0

.15kchxr0 by .15kchxr0 June 3, 2021

15katimavik 

Basically the password for the internet in every school in the western Quebec school board

My brother has access to his schools wifi network but I don’t so I tried his (15katimavik) on my school, it worked

15katimavik by WarningMinecraftIncluded November 16, 2017