What is "snuff films"

Usage examples of "snuff films".

I did tell Gabriel and Raina that if any other snuff films surfaced, they could kiss their furry asses good-bye.

I wonder about his mother, his upbringing, what it takes to create a man who watches snuff films for pleasure.

I guess when he found he couldn't get off on just pain alone he started doing snuff films.

By the way, do you know we now have conclusive evidence linking North personally to the production of snuff films in Mexico?