Jeffurium 

The -1st element in the periodic table. The element contains -1 protons but has infinite mass. It is the strongest element in the universe and instantly annihilates any matter it touches. While it is a rare element, it is usually found within a star in the Jeffurious constellation, discovered by Jeffury. So far humans have only managed to contain a stable form of Jeffurium for a quadrillionth of a second.

Hopefully scientists in the future don’t use Jeffurium as a weapon of mass destruction.

Jeffurium by Jeffury December 19, 2019

Jeffrum 

Jeffrum stands for jeffrum which derives from the Greek word jēfrûï which is slang for jefram.

Ethan is a mega jeffrum

Jeffrum by Jeffrum March 31, 2021

Jeffriam 

A Broooooooo who runs every job and is the local area foreman. He knows how to bop bop bop and boom boom boom better than anyone. He always keeps it One Hundo percent.

Broooooooo you are such a Jeffriam

Jeffriam by RSS2000 April 11, 2023