k9 

code word for Cigrette, usually menthol. most likely newport brand.

Hook me up with a k9.

k9 by JO@y January 9, 2007

K9 

Afeilds finest.

Look there goes k9 "Afeilds finest"

K9 by Tracy carter February 16, 2017

k9 

A name of a special trained dog used by the police and the army

Bob asked the officer do you use k9 to track criminals
The officer responded yes

k9 by XxNoob5layer9000 June 19, 2018

K9 

Drill Rapper

Yo you heard K9s new ting g?
Yeah g it’s too cold trust me

K9 by Y.k9 March 24, 2021

K9 

When someone has sexual relations with a dog.

I wanted to k9. Do you know where the dog and peanut butter is hiding?

K9 by PFM01 November 24, 2022

K9 

To take a shit and be so confident it was a clean break that you don't even wipe after.

Man 1: "Yo man that was a quick shit!"

Man 2: " Yeah dude I k9'd it!"

K9 by Slink2020 April 11, 2023

K9 Protection 

The blocker that your mom installs that doesn't allow you to look at "dirty" sites such as MySpace because it includes chatting, hate speak, and it's allowed for all people over 14.

I tried looking at porn and holy shit, all I see is a dog with a cop badge on him telling you it's blocked. Fuck you, K9 Protection.

K9 Protection by MySpace Bob January 10, 2008