Jumbo Johny is a nickname for large men named Johnathan who usually have a little zest to them but still mean well
by Jumbojohny2 December 19, 2023
Get the jumbo Johnymug. During the Trinity Test, the Jumbo device was another implosion device designed by the X2-A section of the Los Alamos laboratory to act as a failsafe device for the Trinity test explosion.
On the day of the Trinity test, confidence in the plutonium bomb "Gadget" led the Manhattan scientist to decide not to use Jumbo anymore.
by pacificshell50 August 23, 2022
Get the Jumbomug.