Johnsonitis 

having a big johnson/penis

yea man the doctor told me i got Johnsonitis.. i think it’s terminal

Johnsonitis by YoungPrawn October 4, 2022

Johnsonius theorem 

The theory that supports the idea that air has no mass although it has matter, this is shown because buildings don't collapse because of the air above and surrounding it, if air truly did have mass then why aren't we floating because the air should take up the space beneath us and compress to such high levels that it repels us but instead it doesn't so therefore air can only be considered a force due to it's invisible nature similar to that of gravity

"I highly support the Johnsonius theorem because I'm smart"

Johnsonius theorem by BLUELOCK CULTIST May 29, 2023

Johnsonite 

Used to describe a supporter of the Conservative Politician Boris Johnson.

"Have you seen those Tories on the TV?"
"How can they defend Boris-Stupid Johnsonites"

Johnsonite by TheFuturePM April 4, 2022

Jeremius Johnsonius 

A term you can use when Jeremy Johnson becomes a fossil.

"Next exhibit, the Jeremius Johnsonius."

Jeremius Johnsonius by theworldofurbanwords December 7, 2024