1-When somebody is extremely angry and they throw a fit.
2- When something is beyond Awesome.
1-" After hearing what happened to his brother Micheal went thermonuclear"
2-"Did you hear the new Imagine Dragons album?, it's thermonuclear!"
by M@l0k@ January 2, 2018
A thermonuclear weapon is a nuclear weapon design that uses a fission bomb's heat to ignite a nuclear fusion. The resulting explosion is a lot more powerful than the normal nuclear weapon.
They tested a thermonuclear weapon and it turned out to be more powerful than a nuclear one
by Nuclear_Scientist December 7, 2013
when one eats large amounts of spicy foods and releases the malevolent fumes out the asshole thus burning ones anus and the ozone layer
Tom- You better leave

Bee Bop Magoo- why

Tom- I just released a thermonuclear fart
by Retarded-doplphin-jockey September 26, 2013
A fun game meant to simulate the end of the world. Was frequently played during the Cold War, but has lost popularity since nobody wins.
Dude 1: I'm bored.
Lady 1: Let's play Global Thermonuclear War!
Dude 1: Nah, let's play Tic-Tac-Toe
by SilentSand April 22, 2010
The outcome of eating a takeaway, and then creating a 50 megaton fart the next day. A brown bubble forms before exploding and releasing the scents.
All of that Turkish food helped me produce a Thermonuclear Bubble.
by Flatulent_Jarvis March 16, 2020
It's like a hydrogen bomb: You eat the normal beans first which causes the outer beanage (Bush's honey flavor) to create an uncontrolled flatulation reaction.
I just ate the second can of beans. OH GOD I CAN'T STOP THE THERMONUCLEAR BEANAGE FROM CREATING A HIGH PRESSURE ZONE IN MY INTESTINE THUS THRUSTING EJECTA OUT MY REAR QUADRANT!
by arecibo drake April 14, 2010