A term used to describe a person who is acting like such a cunt, that they alter the Earth's meteorological behaviour, resulting in near-apocalyptic storms with lethal levels of thunder. This is the worst level of cunt you can get.
C: My ex gf is trying to ruin my life because she has a diluted idea that she knows what’s best for me.

E: Damn she’s a real thundercunt.
by Important_hoodie March 12, 2019
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When someone has surpassed doucheness to beyond motherfucker
Damn you, you fucking Thundercunt
by Itoyo January 16, 2016
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A cunt exceedingly larger than others, literal or otherwise.
Fuck that bitch was a thundercunt.

I almost couldn't handle her thundercunt.
by mistresskayone August 4, 2010
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A woman who has been with so many men that her lips create a sound like thunder when she walks.
Man, do you see that thundercunt over there Mike?

No, but I heard her coming a mile away.
by Jerry Sievert April 20, 2008
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A truly moronic and stupid person. This is that person that you would love to see fall off of some large building.
"Dude Tim Tebow is such a ThunderCunt"
by DonFon November 29, 2011
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The part of the female body, also known as the vagina, in it's most ferocious, and prodigious form.
OMG, a thundercunt! Run!
by Matthew January 1, 2005
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1) A terrible case of the queefs.

2) A loud, boiseterous woman who lacks the ability to shut up.
1) "Oh, jeeze, excuse me -- I have a terrible case of the thundercunts."

2) "Man, Sheila is such a thundercunt!"
by paludism August 19, 2011
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