Ruditude (n.) is a to have a rude, irrational attitude. A way of thinking or feeling about someone or something, that is reflected in a person's behavior, in a rude manner.
BF: Hey babe, I made you breakfast.
GF: What did you make?
BF: Eggs and bacon.
GF: You know I don't like Bacon.
BF: That's okay, don't have any bacon then.
GF: I hope you choke on the bacon!
BF: Huh? What's with the ruditude? You on your period or something?
by Smush 918 March 10, 2014
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An attitude problem; the choice to behave in a generally unpleasant and rude way towards people around you for whatever reason, shows you display ruditude.

see also Ruditude and Sulkpot; two fictional minipins who from time to time crawl into a young child's brain through the ears, causing him/her to display unpleasant and oppositional behaviour.
As in:

Sulking child: " No! I'm not going, I want an ice-cream"

Parent: Oh dear, looks like Ruditude and Sulkpot are back!

particularly useful as a deterrant for oppositional behaviour during later teenage years, as it either makes the accused feel ridiculous or like a silly child...

by NMM August 14, 2008
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An annoying rude attitude; more than a standard teenager gives everyday
Girl, you need to get your ruditude in check before I come over there...
by Mmlawson September 5, 2019
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The combination of someone being rude and holding an attitude for no justifiable reason.
That old lady at the RVC bookstore had to much ruditude towards my pal Kayla.
by BrunchingBag April 11, 2016
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