Its when you fuck someone so hard, that the impact of your bodies against each others makes a loud thunderous sound
Timmy: Suzy and I thunder banged last night and the neighbors got freaked out, they thought there was a storm coming.
Ben: THAT LOUD NOISE WAS YOU TWO?
Ben: THAT LOUD NOISE WAS YOU TWO?
by Voidaid September 7, 2016

1) When a person has thunder thighs that clap as loud as fans at the Thunder National game.
2) Thighs that bounce like a basketball.
3) Thunder thigh league
2) Thighs that bounce like a basketball.
3) Thunder thigh league
by RainbowMudpie April 11, 2017

by TheOneWhoComes March 11, 2023

The greatest elliptigo riding Track Coach and Geometry Teacher in the history of Marquette High School.
by thunderdanfanclub May 2, 2019

A noun used to describe a person who rushes into abnormally stupid activities or situations he/she has no cause to be in or ability to successfully negotiate. i.e. one who "thunders" into stupid shit like a dumbass, hence the term. Usually reserved for those who are dumbasses to such a high degree / perform acts of dumbassery on such a regular basis, they require their own classification.
Al: "I'm going to go fight in a martial arts tournament on Tuesday."
Sal: "Dude, you've never taken martial arts before. You'll get your ass kicked. Why are you always looking for a fight?"
Al: "Nah man I'll fuck up anybody who tries that Judo shit on me"
Sal: "Stop being a thundering dumbass. Just have some drinks with the boys instead."
Al: *proceeds to get his ass kicked on Tuesday*
Sal: "Dude, you've never taken martial arts before. You'll get your ass kicked. Why are you always looking for a fight?"
Al: "Nah man I'll fuck up anybody who tries that Judo shit on me"
Sal: "Stop being a thundering dumbass. Just have some drinks with the boys instead."
Al: *proceeds to get his ass kicked on Tuesday*
by the bad Ag February 21, 2019

by Tyrell Lamont April 20, 2018

by Flicking your bean April 2, 2022
