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To be aggravating, annoying, irritating, not doing what you want them to do.
Ethan: Hey Jacari can I copy your homework?
Jacari: HELL NO!!! I worked hard on it!!
Ethan: pleeeaseee!!
Jacari: No.
Ethan: Okay fine. Your being really pisty.
by Illuminati GURL October 16, 2011
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