Killen cold 

When the water is so cold it's "Killen" you

"Oh yeah, that's Killen cold!"

Killen cold by Jsg520 April 18, 2018

stone cold killer 

1. A person you don't wanna fuck around with.
2. a ruthless hitman

the bastard that I hired was a stone cold killer

stone cold killer by Ryan "homie G" August 18, 2003

stone cold killer 

The guy(s) who really killed JFK.

David Yaras, Chicago Outfit

stone cold killer by rondh69 November 2, 2003

cold killer 

any piece of graffiti artwork judged by peer graffiti writers to be among the "sickest" or "most ill" graffiti pieces ever produced

"man did you see that piece in the window downtown? that was some cold killer shit"

cold killer by dr. caligari January 19, 2004

Stone cold killer 

Ashleigh’s tend to be stone cold killers

Ashleigh was a stone cold killer yesterday

Stone cold killer by Alexcc October 30, 2017