Blue Wrench 

A person on youtube with the power to destroy people.

Blue wrench people scare me.

Blue Wrench by WaluigiBot January 20, 2019

blue tip wrench 

oxyacetylene cutting torch

"blue tip" from the blue torch flame
"wrench" for the tool's versatility and the speed at which it can be used to disassemble damn near anything

A favorite of "redneck engineers"

Also called a smokewrench

Fuck! The damn bolt's froze solid! Gimme the blue tip wrench, I'll get that fucker loose!

blue tip wrench by Dr. Badwrench September 22, 2006