Jumbo 

Jumbo is fucking fat

wow that guy is Jumbo!

Jumbo by enzohot February 1, 2022

Jumbo 

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.

Jumbo by pacificshell50 August 23, 2022

Jumbo 

Nickname for an existing American tank with thicker armor, designed for an assault role.

"Is that a Pershing?"
"No, that's a Jumbo Pershing."

Jumbo by thegoddamnfrench January 29, 2024

Jumbo 

The 36th President of the United States of America. Most notable for his Civil Rights legislation, his “Great Society” program of domestic reforms, and the escalation of America’s involvement in the Vietnam War.

“I’ve gotta take ol’ Jumbo here and give him some exercise. I wonder who I’ll fuck tonight”

Jumbo by scrub_thugman June 17, 2024

Jumbo 

The 36th President of the United States of America, serving from 1963 to 1969. Most notable for his Civil Rights legislation, his "Great Society" program of domestic reforms, and the escalation of America's involvement in the Vietnam War.

"I've gotta take ol' Jumbo here and give him some exercise. I wonder who I'll fuck tonight"

Jumbo by scrub_thugman June 17, 2024

jumbo 

A backronym of Indonesian origin standing for "Jajaran Umat Manusia Berukuran Obesitas", which means "the rank consisting of obese people"

When we jokingly referred to our group as the jumbo, we meant it as a lighthearted way to describe our crew of friends who love food a bit too much!

jumbo by Emotional Cruiser October 3, 2025

jumbo slice 

(verb) To take a slightly unattractive girl to a sleazy pizza place after drinking heavily, not order any pizza, but instead make out with the girl in the corner while shitty music plays and the counter-attendants look on unhappily. One who jumbo slices will not take the girl home after.

Mikey's hitting on every girl at the bar tonight. He must really be trying to jumbo slice!

jumbo slice by Nice Hat March 30, 2007