A horrible combination of Seppuku and Bukakke, where by the woman when the bukakke crew is about to climax promptly stabs herself in the stomach for the men to ejaculate into.
Holy shit! That was crazy, she just seppukakke'd.
by qbon October 26, 2004
1 more definition
Ritual suicide concieved by the performance of bukakke.
The sound of the perverted suicidal person performing seppukakke: "Hykuaaaa glubbglubbglubb glumfmlmmfllf... aaargh..."
by Hugin January 15, 2006