seppuku over C'thulu ass

A short way of explaining a very long and complicated process that requires lots of work and energy, similar to that of a crazy occult ritual.

Literal meaning: Samurai ritual self disembowelment over the ass of C'thulu the Lord of Darkness.
seppuku Cthulu

Friend: Want to hang out later?
Me: No, my computer is broken and I have to commit seppuku over C'thulu ass to fix it.