Knifebird 

One of the most dangerous creatures on Earth. One only appears to someone who is really old. Only two people have survived an encounter with one. Little is known about these creatures besides that of their dangerous nature.

You're almost old enough to be in danger of a knifebird encounter, enjoy your life while you can.

Knifebird by I'm Really Old January 4, 2010

knifedildo

A device in which one end is a large, penis-shaped dildo, while the other end is a 7-inch steel blade.

Girl: "I haven't been able to walk since I used the knifedildo."
Guy: "Which end did you use?!"

knifedildo by Derek Longass February 11, 2010

knifebrew

When you make soup but want it to become more edgy, and decide to add razorblades and rusty knives.

oh man, I need some attention. I think I am going to make myself a knifebrew

knifebrew by Rank Dank man September 21, 2017

knifecide 

To suicide with a knife, that's all you need to know

Henry was so depressed so he grabbed a knife and committed knifecide

knifecide by Papagei July 2, 2024