This basically is a word that means a very large cunt, or disrespectful woman. A butfuckingdundercunt is to be used on the spur of the moment and not to be used towards anything other than a female.

Woman: Go make me a sandwich!
Man: Shut up you butfuckingdundercunt!

the male took action because the woman actually said to make him a sandwich.... im pretty sure men dont make sandwiches, so he took initiative.

Butfuckingdundercunt by Dylan!!! June 14, 2011

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Bunuck

Getting up at bunuck means getting up at whatever time you like!

Person 1: Hey Vi what time you getting up tomorrow?
Vi: Hey person 1, im not getting up till bunuck!

Bunuck by Fat Vi January 2, 2011

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butfuck

wen u fuck up the butt

doin it doggey or just with a dog

butfuck by billy bob October 18, 2003

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butnocker

someone who fucks somebody in the ass until they shit everywhere

man i fucked her so hard in the ass last night she shit all over my dick, she butnockerd me

butnocker by obamas lama December 3, 2011

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