What is Seppukakke?
1.
A horrible combination of 
Holy shit! That was crazy, she just seppukakke'd.
2.
Ritual suicide concieved by the performance of bukakke.
The sound of the perverted suicidal person performing seppukakke: "Hykuaaaa glubbglubbglubb glumfmlmmfllf... aaargh..."
See 
Random Words:
1. 
That one weird kid with the unbearably long last name who just happens to always sit behind you.
Constontopolis: Hi Hillary.
Hillary: ..