Top Definition
When really mad and you rearrange the words shut up to up-shut.
"Awww, are you PMSing?"
by Ilikeitikethat_hotchelllerae December 18, 2011
what you tell a teacher when you don't want to hear what the fuck they're saying
normally used when they are tellin you you are wrong and normally said quickly
teacher:no jane thats not the answer i....
jane: up shut...
teacher: excuse me?
jane: nothing...
teacher continues on with lesson...
by ilybryan April 07, 2009
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