verb:

The evacuation of a wasabi soup-like substance from one's asshole following a heavy night on the drink. Burning around the rim can be so severe that victims have been known to make desperate pleas for assisted suicide, while others suffer silently in the hope that the pain itself will finally put them out of their misery.
"Drinking those sixteen beers during happy hour had me performing soupooku all damn morning. I'm lucky to be alive."
by little_tq_joint September 24, 2013
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