thunder gut 

the enormous gut of an obese person that produces thunderous sounds when it smacks against itself.

yo man do you see that obese person?
ya man she has a dirty thunder gut.

thunder gut by A-bar June 6, 2010

gut thunder 

The sudden, uncomfortable, and uncontrollably audible rumble emanating from the abdominal region, usually signaling the imminence of a trip to the toilet. Can be disturbing to others, and very embarrassing for the afflicted party. Not to be confused with gut storm, which usually follows or accompanies gut thunder.

All through the presentation, someone in the back row had a mad case of gut thunder and made it difficult for anyone else to enjoy the show.

gut thunder by Bada Bing, Bada Boom November 1, 2013

thundernut 

a massive explosive orgasm releasing a gargantuous amount of semen.

"dude i thundernutted that hoe in the face!"

thundernut by Thundernut October 25, 2007

ThunderGump'n

The act of Pwning a fellow League or team member.

Dude 1 - WTF we are on the same side
Dude 2 - Dude, I just ThunderGump'd you ass
Dude 1 - Oh, ok then. ThunderGump'n kinda fun
Dude 3 - We are /^A^\

ThunderGump'n by J-String Man February 24, 2010

thunderbutt 

1. A gigantic, flabby, asymetrical, disgusting ass. Resembles a thundercloud due to its shapelessness, constant shifting, and that it strikes terror in the hearts of small children. Has been known to nuetralize erections and make beer taste flat.
2. A fart that echoes for at least 3 seconds.

1. I almost threw up when I saw that thunderbutt!
2. That thunderbutt was fucking nasty!

thunderbutt by Admiral Anarchy October 21, 2009

Thundergunt 

The act of maliciously banging a woman who has a pronounced FUPA or gunt so intensely that it produces extremely loud flesh-slapping sounds.

After a I rolled a 210 at bowling on Friday night, I thundergunted the grenade for my buddy.

Thundergunt by D-Fresh04 April 27, 2010

Thunderbutt 

A person (usually a woman) who's ass is so massive that when she walks her ass creates a thunderous rumble that frightens everyone around her.

Daaaaaaamn that womans ass is HUGE. She's got a Thunderbutt

Thunderbutt by logicalkaos September 7, 2011