There are a number of different ways in which this word can be used, besides being an informal name for female genitalia*, it can be used in at least two other ways:

1) A derogatory name for a person you intensely dislike;
2) As an acronym standing variously for Computer User Non-Technical, Cannot Understand New Technology, Cannot Utilise Normal Thinking.
No doubt there are others as well, but those mentioned here all share a common theme in that the person described is a bit of a twat.

*For some reason this is now perceived to be offensive, but during the Middle Ages in Britain it was a word in common use indeed, it still remains in some street names e.g. Gropecunt Lane.
"Malcolm's ballsed up his computer again and doesn't know why."
"He really is a cunt!"
by Croatalin December 04, 2013
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Derogatory term for a woman. Considered by many to be the most offensive word in the English language.
by Captain Fantastic February 15, 2003
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While often used to describe a vagina or an unbecoming person, originally used in old English to describe hitting someone with force. Since women were often the recipients of slaps or punches, the term 'cunt' began to apply to women, and then to their genitalia.
Tom: You wanna chill today?

Gino: Can't dude, I'm getting in this cunt's cunt.

Tom: Good work, cunt.
by Twaterhouse11 July 06, 2012
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As defined by an Ivy league scholar C.u.n.t is an acronym for = Can't Understand Normal Thinking!
That silly cunt makes no sense.
by Dr Drgnfrk March 02, 2017
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An insult OR a slang name for a part of a vagina.
1) Lucy Bell-Young is a cunt.
2) I liked her cunt.
by Gore Gore Gadget Gore June 29, 2009
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