n. A large sum of semen, usually produced by many men.

Another word for bukkake.
When the Semen Tsunami hit her face, she scream in disgust.

The Semen Tsunami contained enough semen to impregnate 1,000,000 women.
by Sencored March 7, 2016
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The results of the first wank after No Nut November.
I survived the month, now prepare for the semen Tsunami.
by Salanzarx November 19, 2018
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