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1.
A mix of the word putang and tsunami....in short amazing pussy.
I had me some pusami last night...my balls are still tingling.
by Happiness Hunter July 06, 2009
 
2.
An overwhelming surge of vagina, due to a winter, spring, or summer break.
Dude finals are over and all girls are looking to get laid, its going to be a god damn pusami!
by Mr.BigDickMoney December 13, 2011