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Propping up a 50 gallon trash can full of water against another persons door and then waiting for them to open the door which will cause the trash can to fall inwards onto their floor and feet. The following effect will be large puddles and sitting water for a long long long time. Basically Hurricane Katrina goes through your room.
I opened up the door and those bitches Katrina'd us!! No wonder it happened to us George Bush hates black people.

Everyone grab your loved ones and get out of here Katrina just hit!
by Puddy Tat January 24, 2007
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A word which came into common use following Hurricane Katrina; used to describe something very unfortunate that occurred in the past.
I forgot to do my homework last night and my teacher katrinad me. Now I'm getting a C-. Damn.
by B Weins September 14, 2005
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