A fierce climax from face fucking that blows the back of the skull open.
Lardiss: Hey man wheres Cindy.

Ty: She's dead; last night I achieved thunderhead and now her cranial products paint my headboard.

R-dog: She was kinda weak anyway.
by ty187 August 5, 2006
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thun·der·head, n. The swollen upper portion of a thundercloud, usually only recognized by people who enjoy having great breadth, but little depth of knowledge.
"Hey everybody! Look over there at that thunderhead!"

"Shut up Steve, no one cares."
by Joe October 22, 2004
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The hard, knotty end of a constipated turd
George! Your thunderhead clogged the toilet again!
by Stefonamus February 12, 2010
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When taking a shower in the locker room while another person is simultaneously dropping a hot and smelly deuce in a nearby stall. The steam of the shower and the stench of the poop combine to engulf you in a thick, warm turd fog from which there is no escape.
Mike was taking a shower after practice while Joe was taking an enormous dump nearby. The combination created a nearly lethal Thunderhead Steamer.
by why me? August 23, 2013
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When one rubs their penis on the rug, which creates an electric charge, and sticks it in a woman's fat juicy puss
"Oh wow!" "He really gave me a thrill when he used his thunderhead Jenkins on my Vagoo!"
by The Vagoo Snatcher January 13, 2017
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