Butcher knife

a way to put others in their place , or to dismiss something.

Girl: I'm like super pretty!
Boy: Butcher knife

Butcher knife by aWsballet June 8, 2015

Rolling ball of butcher knives 

A treacherous, nasty, dangerous person or thing you should steer clear of.

I avoid visits with my wife's family as my evil mother-in-law is a rolling ball of butcher knives.

Rolling ball of butcher knives by Sauceman December 27, 2004

Rolling ball of butcher knives 

Someone who is sharp and all over the place; a live wire

She’s been a rolling ball of butcher knives managing this hospital of Covid patients.

Rolling ball of butcher knives by The Real Llama November 28, 2021