While a “tornado hunter” actually refers to a person who chases after tornadoes in order to document them for scientific purposes, these guys thought it meant you actually pursue a tornado and kill it, similar to hunting animals. However, in a twist of comic absurdity, they were actually able to kill a tornado with a gun. They then had to mount it to their car, as though they had killed a deer.
The hunter also wears a pith helmet and has a large mustache, like a stereotypical british big game hunter.