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The act of gradually shaking and vibrating the bum until the cheeks smack together in a thunderous clap.

Usually and most easily acccomplished by women with large, saggy booties.
I wonder if Shaquanda can do a thunderclap?
by nearperfect9 June 10, 2004
The name of the famous (or infamous) roller coaster that few elite individuals have the privilage of riding on at Clemson University's Orientation, founded by OA Neyle Noyse in 2012.
Hey, who wants to go take a ride on the THUNDERCLAP?

*crowd goes wild*
by StantTheMan July 03, 2012
The action in which the male ejaculates onto the palm of his hand and then slaps his partner in the face, creating a loud clapping noise.
Man, when I got done I gave that girl a thunderclap and showed her who's boss.
by DJ Stymie August 11, 2006
The sound of a chick's tits clapping together when she rides you violently. Most common with full breasted women.
My girl was riding me so hard last night the sound of her 34DDD tits thunder clapping together was so hot I just had to get a handfull.
by petestokes March 08, 2007
When one has massive diarrhea that explodes out of the rectum with such force that it sprays all over the bowl and even on the adjacent wall.
I've have so much Taco Bell this week that every time i poop it's like a thunder clap coming out of my ass
by Jonathan Maroney October 23, 2010
When you're fucking a girl missionary style and her *Panel is flying back and forth creating a clapping sound.
"When I was with her over the weekend, I heard some loud noise. She was Thunder Clapping the whole time when I was fucking her"
by Slappy Fack November 30, 2006
A game in which a person, or group of people, (usually intoxicated) run into a random house until they see a person in the house at which point the player should scream "THUNDERCLAP!!!" The person should then run out of that house and to the next house they see.

*If you go on one block, eventually the neighbours will start calling eachother with a warning, or the cops.
Person A: "Last night I was super tanked with (person B) and we played a kick ass game of Thunderclap... The look on each person's face was PRICELESS!"

by anonymousish November 27, 2009