Top Definition
1. Large amounts of teenage vagina achieved within a fortnight.

2. An overwhelming amount of vaginal fluid.

(The different uses of Poonani Tsunami are to be recognized through the expression on the speakers face.)
Ex 1. I've been riding a poonani tsunami all week and I'm having a lot of fun.

Ex 2. There was a poonani tsunami and it got all in my eyes.
by Nickuhcrazy June 09, 2008
a reunion of poons the likes of which this world is not prepared to handle
get ready for the poonani tsunami of summer 2005 :)
by CK Washington April 25, 2005

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