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5.
The name given to the slapping sound produced during the act of sexual intercourse in the famed doggy style position when a males testicles, which are especially loose and/or saggy due to heat or over stimulation, smack against the back of the females thigh and produce a slapping sound reminiscent of a soft clap of the hands.
Man 1 "Nigga i was bangin my girl the other night doggy style and my balls were so loose that the sound of the thunderclap was proper so loud that i went deaf in my left ear."

Man 2 "Shit nigga you best calm down on swingin dem testiclots around."

Man 1 "Word."
by Ninja Mc Stealth Kill August 23, 2009
 
1.
A thunderclap is the sound of a scrotum slapping against the body when going balls-deep
I went balls-deep with Deedra last night. So you gave her the ol' thunderclap
by TSUAOJAP April 15, 2010
 
2.
When a man is a.) naked or b.) wearing clothing that is non-constraining on the crotchal region, and he begins pelvic thrusting with such violent determination that his scroat (scrotum) begins to repeatedly smack audibly againnt his chode/taint/chonch.
Honey, stop that! Your thunder clap so goddamn loud it's going to wake the neighbors again.
by Masterclapper October 19, 2006
 
3.
The act of thrusting ones waist back and forth causing a man's scrotum to to slap the gootch creating a clapping noise.
*At the Superbowl*

Boy: "Shit bro, my hands are full."

Friend: "You can always Thunder Clap"

Boy: "If I must." (clapclapclap)
by thunderclappingpro March 21, 2011
 
4.
Clapping in the air with a sliding motion. With one hand raised first, with the second to meet it half way, clapping, with the second hand left extended. Repeat back and forth.
Look at that guy, he knows how to thunder clap!!
by Setrock October 29, 2004
 
6.
To dominate (punking) something or someone in a very epic and irreversible manner.
Yo JT, you need to establish your dominance and thunder clap the first no body you see.
by Jono86 January 05, 2014
 
7.
A scientific term used to describe an advanced stage of Chlamydia, in which the genitals are covered with blistery and often puss filled pustules that pop like thunder. Often resembling the face of a pizza delivery boy.
I knew that girl was slutty, but I didn't realize how slutty until I heard her thunderclaps from across the room!
by Walker Thundercox September 20, 2011