K9 

The police unit that uses dogs to sniff for drugs or other things

Man, i'm lucky i wasn't pulled over by the k9 unit while smuggling this crack

K9 by Giant-rat July 26, 2005

K9 

Rear-entry sexual intercourse; e.g. "doggie-style"

K9 by Anonymous October 15, 2003

k9 

A shortened form of the word "Canine."
The sound of the word results in "K-9."

"That dog is a cute K9!"

k9 by Dalhusky July 23, 2006

K9 

Robotic dog from Doctor Who.

I wish I had a nose laser like K9.

K9 by neitherday November 1, 2006

K9 

sex between humans and dogs.

'she is into k9'
~how much do you love your k9~

K9 by wolfgirl November 4, 2003

K9 

An amazing person that every girl likes, adores, and dreams of. He is sexy, handsome, and hot. They are super popular and can get any girl they want to come home with him.

Wow look at him with all those girls, hes probably K9

K9 by Kniyn August 31, 2017

K9 

Synonyme for Dog.
But also used to look up Animal pr0n.

Side note: "K3" Annoying Girlband from Belgium.

"Did you see that movie k9?"
"Yeah with that dog, it sucked and blowed at the same time."

K9 by Johni May 13, 2005