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your little sister who always gives you shit. Being the the older sibling gives you the authority to call her a turd.
My sisturd was bitching to me all night, so i threw her cat out the window.
by t3pf May 26, 2009
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Nickname for your sister when she's acting like a turd.
Sisturd, don't be peeved because I called you out for not contributing your fair share for Mom and Dad's birthday gifts. It's not my fault you smoke all your money.
by becsmoneybooty July 17, 2008
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