belt notcher

A defecation, so grand and voluminous, that it requires you to adjust your belt one notch down.

Mike: I just dropped a real belt notcher. I now feel a deep emptiness inside me.
Mary: I know what you mean. I also feel empty inside.

namujaa

An incorrigible person; an obstinate person; a blockhead.

Hiro is a real namujaa. He refuses to go to the doctor despite blood coming out of his ears.