1 definition by HarukaNanase

Derived from the Japanese word Seppuku, to cut open your stomach; or Harakiri. Another word is Swimicide. Committing suicide by swimming to the death, or losing a relay against Rin Matsuoka.
Getting challenged by Matsuoka Rin to a relay, the loser must commit Swimpuku.
by HarukaNanase November 4, 2013
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