A phrase coined in the year 2013 referring to when you get a girl super wet. Therefore, Poonami-Tsunami.
Dylan ate that heavy honey out so well that he gave her a poonami-tsunami.

It was a poonami-tsunami down there.
by gingginggingging September 8, 2013
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A period. Coined in 2016 by a YouTuber, the poonami tsunami is a play on both words used to refer to a woman’s menstral blood.
Girl 1: hey, want to go out tonight?
Girl 2: no, sorry. The poonami tsunami started.
Girl 1: oh, I’m sorry. Chocolate and Netflix tonight then?
Girl 2: yes, please!
by Snek Keeper June 22, 2018
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A huge quantity of poo expelled by a toddler.
"Oh no, my son just made a poonami on the floor instead of using the potty"
by ervik January 31, 2019
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A Poonami is the unexpected need to take a bowel movement. The result is a highly violent, high velocity liquid shit. It is worsened by the act of pulling down your pants in a furious frenzy not to crap your pants. This act can result in the projectile diarrhea splattering on the back of the toilet not allowing the victim to sit on the toilet . The cleanup is disgusting and unavoidable. Yea
I splatter shat my toilet so bad the Poonami required a haz mat team to do the cleanup
by April 4, 2022
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When your shit hits the water so hard that it causes a toilet water wave. Resembling a tsunami.
"Dude, I was in the toilet and I did a poonami!"
by idontMATTer August 8, 2015
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