thunder muscle

penis, usually hard

Drink that thunder muscle down, baby!

by albielin February 29, 2012

Thunder God

One who farts loudly and/or frequently.

1. Listening to Conan's theme song while taking a shit makes me feel like a Thunder God.

2. Everyone make way for the God of Thunder!

by Vlad the >Implier October 18, 2012

Thunder up

To be ready to fight; To be prepared for an ass-whooping

Tom: I'm gonna knock you the fuck out, punk
Dick: Thunder up, bitch

by A. Kylar July 4, 2016

thunder balls

The feeling when you haven't ejaculated in so long that they start to feel like your balls are going to explode.

When Mark decided to stop masturbating, he had no idea of the pain of thunder balls and was sorely unprepared for the pain ahead.

by Starbuck32123 March 6, 2016

Thunder Biscuit

A Thunder Biscuit is a fart let out with such a force that it causes your buttcheeks to clap with a thunderous noise while simultaneously causing you to involuntarily deficate yourself releasing a sewage like gas into the air causing the surrounding area to become uninhabitable momentarily due to its longer than usual hang time.

Robert let out one of the nastiest thunder biscuits have ever smelt.

by Thunder Biscuit September 30, 2016

Thunder Mifflin

The act of giving a girl an Orgasm while The Office is playing in the background.

Friend: "What did you and your girl do last night?"
"We started out watching The Office and things started to heat up and I ended up giving her a Thunder Mifflin"

by DrCrentist October 26, 2018

Trundle Thunder

1) The noise that occurs when a fat person trundles including the booming of large feet and the screams of people as they are trundled over.
2) A fat person's fart.
3) Any non-voluntary noise associated with a fat person.

Dude, there's so much trundle thunder comin' out of KFC.

by blaa91 April 14, 2008