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 04, 2013
Can you define these popular missing words?